Never thought about this before, but obviously very true and funny, you have M,T, WTF, S,S in a calendar, so WTF?

Say that 3 times real fast, Person Planking on Passenger Plane. Not sure what else to say about this funny picture, although I think that guy has a facial expression that is like WTF and the woman thinks it is crazy funny, maybe he could score with her after they land.

A great collection of many crazy signs that make you want to say WTF

Crazy bad Plane Tail Number WTF