nostr:npub1yk67q98wp2s8asr3pdvkmdmmh3x4566fz55m5rlvwsu0dj62s72q804zz4 in Amsterdam, I tripped on a minor paver discontinuity outside the Van Gogh museum and sprawled out, bloodying both knees. Fortunately people there were kind and helpful and put me back on my knees. But your point is taken.