If you attempt to Ender Pearl through Fence Gates you get glitched into the block and suffocate.
MC-69687
Ender Pearling through Open Fence Gates suffocates you in a block
Resolved
Duplicate
0
(Unassigned)
Unconfirmed
Minecraft 1.7.10, Minecraft 14w33c, Minecraft 14w34a, Minecraft 14w34b, Minecraft 14w34c, Minecraft 14w34d, Minecraft 1.8-pre1, Minecraft 1.8-pre2
Retrieved
I guess this should be fixed as it isn't quite a full block