When you know you have a costume for your kid in the closet (that you bought at a resale shop last year) so you don’t worry about a costume this year and then you get it out and realize it’s a kid’s medium and you thought it was a men’s medium (because the picture on the package showed an adult plus the cardboard insert was folded so you couldn’t see the checked size box) and the tag just says Medium so now you have to buy or find a costume at the last minute (yes, this is last minute for me).
So you search Amazon and there really are no good kids costumes in the size he needs and men’s costumes are hella expensive so you end up spending $30 on a costume for him that is passable. Stay tuned.