Capacitor safety questions

Hello,

I just ordered a 12,000uF x 100V capacitor for my power supply. I know
capacitors can be deadly but I have no concept of what a micro farad
is. If this cap is fully charged, is this thing big enough to kill?

Another question is how can I check it so I know it's discharged. I'm
guessing it would have too much power to hook my volt meter up
directly.

Thanks!
David