This reminds me of a story 20 years ago when Pittsburgh Steelers (American football) announcer Myron Cope ran into head coach Bill Cowher...
Myron said, "I see that Lee Flowers is playing today after a high ankle sprain 2 weeks ago. But I thought that high ankle sprains took 4 weeks to heal. What gives?"
Coach Cowher replied, "4 weeks is true, Myron, for the first high ankle sprain. But if you recall, Lee had a high ankle sprain on the same foot last year. And since subsequent high ankle sprains only take 2 weeks to heal, he's ready to play."
Myron paused and asked, "Then why don't you just take the whole team out in February and sprain all their ankles?"
(We laughed 20 years ago. Nobody's laughing today.)
This reminds me of the old joke that, because the possibility of there being two bombs on a plane is infinitesimally small, you should always bring your own bomb with you.
I understand the metaphor you’re using, but for the sake of clarity I feel compelled to explain that there is a big difference: ankle-spraining significantly increases in likelihood with each subsequent instance. So “spraining ‘em all” even once would literally result in long-term degradation and increased frequency of injury. They would take less to heal, but would also get injured so often that the aggregated result would be worse than before.
Sadly joints tend to work a bit differently from the immune system (with some exceptions).
Myron said, "I see that Lee Flowers is playing today after a high ankle sprain 2 weeks ago. But I thought that high ankle sprains took 4 weeks to heal. What gives?"
Coach Cowher replied, "4 weeks is true, Myron, for the first high ankle sprain. But if you recall, Lee had a high ankle sprain on the same foot last year. And since subsequent high ankle sprains only take 2 weeks to heal, he's ready to play."
Myron paused and asked, "Then why don't you just take the whole team out in February and sprain all their ankles?"
(We laughed 20 years ago. Nobody's laughing today.)