Let horror form changelings break out of welded lockers

[DyssalC]

I say no. One, lings are powerful enough, and two, you really, REALLY shouldn't be getting caught or let alone discovered as a ling.

It's not a power thing, it's the fact that horror form changelings can bust through all sorts of shit, but a locker made of thin metal is able to contain the power that is a changeling.
And of course you're going to get caught, that's what horror form is for, when you get caught. You don't use horror form for stealth.