Yes it makes hydrogen, no don't do it indoors, less its an outhouse you don't care about. Use a plastic container, use a trickle battery charger, hook neg to the part and use something like rebar or some other steel item to pos.
Kicking self for selling off my Taskforce trucks. Still looking for an LCF or conventional big bolt in decent shape.
As of 10-26-2022, A 55.2 Taskforce long bed now the work begins