Nervous Crustacea

At Shug's Smokehouse down the road I had a dinner last Wednesday with some colleagues. At the door there was a folding blackboard with the day's specials on it. At the top it read:

ADD boiled shrimp $2.95

Now I knew that Attention Deficit Disorder was becoming ubiquitous, but this is really too much! I wonder how they caught the jumpy little fellows anyway? With Ritalin, pehaps.