  We address the following question: Can we expand an NIP theory by adding a
linear order such that the expansion is still NIP? Easily, if acl(A)=A for all
A, then this is true. Otherwise, we give counterexamples. More precisely, there
is a totally categorical theory for which every expansion by a linear order has
IP. There is also an \omega-stable NDOP theory for which every expansion by a
linear order interprets bounded arithmetic.
