Is tapping to strikes a reassuring sign that at least someone knows when to quit, or do non-fighters fail to understand just how much toughness – both mental and physical – matters in MMA? Former UFC and WEC fighter Danny Downes joins MMAjunkie columnist Ben Fowlkes to discuss in this week’s Trading Shots. Downes: Ben, I had to get my oil changed this Monday, so that gave me a little time to kill. Instead of taking a walk or trying to engage with a person, I did what any of us would do – stare at my phone. That was when I came across your column about the difference between toughness and stupidity .