Re: My lock's fine then
Jingling keys would make a different sound than pins pushed by springs, so in theory it might be possible to filter for the correct frequencies. In practice, probably not.
But just inserting and pulling the key very slowly ould make the pins slide along the ridges instead of jumping, so that should also work.
One reason NOT to jingle your keys is that hackers can already make duplicate keys using a photo taken from long rane with a powerful tele lens.
Damned if you don't and damned if you do.