Affects Version/s: Minecraft 14w33a
Fix Version/s: None
A lot of mobs (cows, sheep, chickens, villagers) are able to escape a pen of fences.
This seemed to just start happening. I think with this release.
I haven't seen it happen but I have seen the mobs after they got out.
In one case I found chicken & feathers as though the chicken only made it part way out, RIP chicken.