“The rag guy”
You and your friends, teenage cyclists, are mounting your bikes on the car roof, and you're going to a race with your coach.
You put a rag under the wheel so that the tire doesn't wear out because that's what one coach taught you, your father is standing next to you.
Another coach comes over "take something nicer, put it under, not like that rag guy"
The coach leaves.
You, embarrassed.
The father from whom you expect support, who has never used anything else in his life but rags, adds "well, why are you putting such a rag under it"
And you stand there and still don't know what's wrong with this rag?!
The moral of the story?
There is no mercy.