http://www.livelob.com/cook.html
"PLEASE... DON'T PUT YOUR LOBSTER GRAM LIVE LOBSTERS IN TAP WATER PRIOR TO COOKING. This will literally drown them and make them very unhappy and dead."
http://www.allrecipes.com/encyc/terms/l/7268.asp
"bacteria form quickly in a dead lobster"
http://www.aroundpei.ca/AZ/section/1,9452,'15-3-1303',00.html
"Caution: if your lobster has been packed in plastic bags make sure there are holes in the bag and remove them ASAP. It is not a good idea to buy the lobster and leave them in a hot car while you finish the shopping! Dead lobster should not be used. Never submerge your live lobster in fresh tap water this will kill the lobster. "
Took all of 3 minutes to research.