make some black powder, then open up a light bulb, and fill it with that. if you do it right, and veeeeerrrrryyyy carefully put it back together, as soon as someone turns on the light switch, they will have a nice surprise.......

That could seriously hurt someone if it worked. It would pop the already broken glass sending flaming black powder all over someones hair. There is not enough compression for an explosion. You would just get someone hurt.

if one were to really want that to work, assuming the ignition source was reliable, could one not just coat in in some sort of hard glue? although if it was ment to be used in the DARK im not sure why you would need a fucking lightbulb....i'm sure almost any low order, and all high order explosives would be more efficient, because no one would see it anyways. so basically that plan is rediculously pointless.

next thing you know the noobs will be saying "fill your computer moniter with smokeless powder, because if its filled with gunpowder then the smokeless powder will blow it up and kill someone"

(intentional misuse of the powder words, fear not, im not that dumb. dont hurt me. haha)