HAVRILIAK says...

Here is my result: 8 heads, twelve tails.

You have a biased coin

Put up or shut up. Take your own coin and flip it 20 times.
repeat the experiment with 4 different coins. Use a penny,
nickel dime, and quarter to insure that the US Mint isn't
slipping you biased coins Report the results.

If you continue to refuse to do the experiment, everyone will
laugh at you for being willfully ignorant and ineducable.