A man walks into a bar looking worse for ware

“Steve”, the barman says, “you look terrible, what’s up”

“Urgh, don’t I know it, I’ve been up all night blowing chunks”, he said as he sat down looking miserable

A guy by the bar overhearing says to the bartender, “oh god, poor guy, he must be really sick”

“You don’t know the half of it”, said the barman, “chunks is his dog”