It's Ms. Toriel, right? I'm so sorry. With any luck, this will just be him having a laugh. But he's a very dangerous criminal. If you do get caught in a bad situation, like you find something in a vent that we can't disarm, try to avoid putting anything hard that will shatter or splinter over the explosive. That'll just give it more shrapnel to do damage with. Something soft, but thick, if you can.