Hi Jack! gif
Adam Rifkin stashed this in gifs
Source is Panic Mechanic:
This is one of the oldest gifs on the Internet: Flash version.
All his pals say "Hi Jack" to him, he responds by saying "Hi" and giving them a weird sort of low five slap. A hijacker states exactly what he's doing ("Hijack!") and Jack slaps his gun down without even noticing.
"Hi Jack!" ?!?!?