Someone keeps stealing my valve caps from my tires!

[KingKhan]

I know I'm not forgetting these somewhere. The first time they came up missing I did, but now I have replaced 3x!! So annoyed. I don't suppose there are locking ones?

 

[Zusky]

Perhaps put a little bit of loctite on them to slow down the putz

 

[smritte]

You need a Trunk Monkey.
Who steals valve caps anyway?