Na, we got those too. Muons, tauons and neutrinos. But the universe unfortunately hasn’t imploded, meaning I have to go to work and pay taxes and shit.

I dunno man. That could lead to a gay arms race.

Seems fine to me. If you click on the result without hitting enter it copies it to your clipboard. Hitting enter sends the result to your register for further calculation or hitting escape clears it. This all seems fairly logical to me.