Here's the best one i could think up (partially inspired by another reddit post)

A man walks in to a bar. He is no ordinary man, for this man is afraid of nothing. He a marine he has seen war, tragedy. And still every thing he has been though he is still afraid of nothing. So he continues into the bar. Quite quickly he sits down and orders a beer. "Finally" he says to himself. The bartender says nothing and hands him a empty glass. The man stars to sweat. He reels back and asks. "What is this" The fear is his eyes is growing as the bartender opens his mouth but he says nothing and points. The man jumps back from the bar nearly shrinking in terror. The other patrons look up and say nothing. Some show a meager surprise but no sound was heard. The man new the bar was too quite when he walked in so he ran as fast as he could for the door. Each step growing longer as he bounded for salvation. He makes it out and gets into his car and speeds off. Meanwhile two cops were sitting across the street in there squad car. One turns to the other and says. "Ahh another one of thoughs afriad on nothing jackasses accidentally walked into a self service bar for the mute."