  In the context of eternal inflation we discuss the fate of Lambda = 0 bubbles
when they collide with Lambda < 0 crunching bubbles. When the Lambda = 0 bubble
is supersymmetric, it is not completely destroyed by collisions. If the domain
wall separating the bubbles has higher tension than the BPS bound, it is
expelled from the Lambda = 0 bubble and does not alter its long time behavior.
If the domain wall saturates the BPS bound, then it stays inside the Lambda = 0
bubble and removes a finite fraction of future infinity. In this case, the
crunch singularity is hidden behind the horizon of a stable hyperbolic black
hole.
