is it harmful to do this? ie. is the metal from the socket wrench toxic when heated? is tin foil better even though it causes alzhiemers? the plastic pen will melt a little...any substitutions for this? does the plastic bottle itself release fumes even though the water cools it down some? does the water remove any chemicals/particles from the smoke?? if a glass piece is substituted for the pen, is the toxicity problem solved?

i know, a LOT of questions. im obviously concerned about health but dont tell me to stop doing it, its my decision, but i appreciate your concern. thank you!!
yes but does the water cool it down enough etc...? ^all in the other questions. haha a lot of them but i wanna know this