Stupid question, explosives are only used to cause damage and destruction. There would be no reason to have them unless you worked in demolition. Why would you want a load of explosives in your house anyway? Unless you had a use for them they’d be completely pointless.

Why would you want a tank? They’re slow, heavy and probably cost a lot to run. I also imagine they’d be hard to drive on the road so once again it’s a stupid question.