Grenades survive if reaction not explosion or Beaker Pourers

[Grizzwold]

I don't hate the idea of grenades that don't explode surviving, but I'd be more in favor of it as a "someone tossed a sonic grenade in the halls and blew out all the windows, get his prints off the spent grenade" sort of thing. I'm not in favor of them being reusable, which is what the OP seems to be suggesting.