Seriously, threatening physical harm on people on the other side of a computer screen, dozens or hundreds or even thousands of miles away from you, always makes you look like a raving hot-blooded lunatic. Don't do it.
I don't know if his power is top 20. But I'm not sure that I agree with your statement about him not being a 20 heavyweight period. By all standards, Riddick Bowe's record is very, very good. He only lost once to an all time great whom he defeated twice. He defeated a handful of prime young prospects with decent records, and briefly held the lineal unified title. Sure, there are some things that we can criticize such as the fact that he ducked Lennox Lewis and never fought some of the other greats of the 90's like Tyson, Moorer, Foreman, etc. And his performances against Golata were horrible. His resume however does have a great deal of substance, and frankly I think he does make the top 20 in terms of legacy, if not for actual power...