Celsior 50c coin test

I heard rumours you can place a 50c coin on the engine block of a 1uz-fe and rev it hard and it will not tip I tried it. It turned a little bit on back off, but it stayed up right. Take into account this was taken when the engine is 20years old, and has 248,000kms (154,100mi). I am rather impressed as I did rev it to around 5000rpm. Sorry about the bad quality, was taken on an iPhone.