story of the night...

tonight, a man came into the store and told us that in the mens washroom, behind the toilet, was a small bag, with two disposable needles inside.
Julie went and brought them in, handling with care of course. they were used, and left behind the toilet alright. the kind in the bag were the same as the one in the picture, second in from the left.

quite a brush with oddity. they weren't in the garbage can, they were just left there, Behind the toilet. at first, I thought insulin for a diabetic, from an emergency kit, maybe... but its the fact that they were found behind a TOILET, and NOT in the garbage can. clearly NOT disposed of properly. so... what were they used for?