I was going to say "all helmets are one and done" -- I'm a cyclist and I'm so used to the community saying that you must replace a helmet after any impact at al

I was going to say "all helmets are one and done" -- I'm a cyclist and I'm so used to the community saying that you must replace a helmet after any impact at all -- but then I remembered in football you just smash helmets together all day and then do it again tomorrow, which seems problematic when you think about it.