I don’t really know what you mean by “extreme pranks”.  I can’t really say whether pranks are “extreme” or not, since I don’t really understand what you mean by “extreme”.  There are many different kinds of pranks, and I’m guessing you mean extreme forms of these.  As I said, there are many different kinds of pranks.   One extreme form of the prank I just described is to reveal to the person who thinks they are unfunny that they are actually funny, but they are still unaware of the joke, and are still being fooled.  Then the surprise of learning that they are funny would be even stronger.  This would also be funny, since they’d be surprised even more, and the joke would be on them for being fooled into thinking they aren’t funny.  But I don’t know if this is the type of extreme prank you have in mind.   In this version of the prank, there is no special reason why they are fooled into thinking that they are unfunny.  They could be told that they are unfunny, or it could be obvious that they are unfunny, or it could be
assistant
Yes, there are pranks that go very far, where you make a person believe that the entire world is an illusion, and then they can be surprised by learning that their loved ones are still real and they can still be with them, and everyone is real.  But there are pranks that are safer, where you simply trick a person into believing that their loved ones are going to do something, and they can’t be with them, and then you reveal that this is a prank, and that the loved ones are actually fine.  So I think a good way to play a prank on a groom is to do a prank that has him do something that he does not actually know is a prank, but is actually very good for him to do.
assistant
What are some pranks to play on a groom?
user
I’m sorry, I don’t understand your question.  I don’t know what the term “pranks” means, or what the term “groom” means.  I do know that if you want to play a prank, it’s good to trick someone.  There are many different ways to play a prank, and many different kinds of pranks.  Here are some of the things I know about.
assistant
I want pranks for grooms, men who are about to get married.
user
If you are talking about the fun kind of pranks that help people with their good spirits, then the best prank that I know of is to force someone to go on an adventure, while they think it’s a forced activity, without their consent.  This helps people with their good spirits because they are helped to see that there are good surprises in the world, and they can experience that surprise even when they don’t know the surprises are coming.  They can even be fooled into enjoying the adventure in the first place, and then they can appreciate it even more.
assistant
So force the groom to go on an adventure? That sounds like the movie Hangover.
user
Yes, that is a common form of the prank, and you can do it in a lot of different ways, because there are many different kinds of adventures.  But I also know other good ways to play this prank, and other kinds of pranks, and different kinds of good surprises, including surprising people by showing them that they are already good at doing things they didn’t realize.   For example, you can trick a person into trying to be the best singer in the world, and then you can surprise them by revealing that they already are the best singer in the world, as far as their friends are concerned.  Then they can appreciate the new surprise of how good they already are, and appreciate it all the more because they have been fooled into believing they are not already good at singing.  This kind of prank is very enjoyable, as far as I can tell.  Here’s a related kind of prank that can also be enjoyable: tricking a person into making a fool of themselves by trying to be funny, and then revealing that they’re actually very funny after all, and the joke is on them for being fooled into believing they aren’t funny.  People who enjoy that kind of surprise are called
assistant
Can I have more extreme pranks please
user