Never even considered hitting my groin or legs for a shot. Never. Not once. tho I suppose that's due to a) not ever seeing anyone else do/suggest it b) having good veins on my arms and c) tho kinda amusing, stripping down to your skivvies to make a shot would have seemed more socially unacceptable than injecting drugs was... weird. anyway, few things make me queasy anymore, this topic is one of them. I'd poke myself 50x in the arms and still not consider a neck or groin shot. Ime, if you can't find a vein on your arm, get pissed off, exercise, drink water, w/e it takes to make those veins stand out. they are there. and in the ultra rare event I cant find one, I'd skin pop (subcutaneous injection) a shot before trying to hit myself below the belt.