You have a friend, Addy Tiser, who you grew up and went to school with. Infact, that's probably the only reason you see Addy any more, as you don't get on like you used to. Nonetheless, you saw Addy at a mate's birthday and agree to catch up another time.
The next weekend, you meet him at an athletics meet, which at least is a shared interest of yours.
Some of the events have special rules, which you appreciate, but Addy has difficulty grasping. The meet culminates with a 100m sprint. The race has special handicapping rules, where the weight of the sprinter is deducted from their time (e.g. 103kg = -1.03 seconds).
A thrilling race is run. Addy cheers loudly and belligerently as his favourite crosses the line first. After a 30 second wait, the final adjusted times are put on the scoreboard. Naturally, a lot of the placings change, including the the first past the line, who came in third on handicap.
Addy is furious. You try to explain the rules to him, but he is adamant that what he saw with his own eyes has to be right. You try a couple of different other angles to try and explain why the rules clearly led to the outcome of the race. Addy isn't talking, but you doubt that he's really listening. After you have calmly and logically explained the reasons for what occurred, he immediately launches back into his rant. Obviously, he's not taking sense for an answer. Thankfully, just as you can't take any more, you get to your car. After a quick goodbye, you drive off, mystified that anyone could be so blind to the truth, in light of overwhelming, obvious evidence.
You choose not to see Addy again.
EPILOGUE: Years later, you find out that Addy died during routine tribal tattoo removal.