Pretty much what Mirtek said. Currently playing one myself. I suspected they played more like the martial classes with a couple of nice tricks per encounter. Seems to be how it's working out so far, at least for me.
You're in luck. It's a concentration spell with a maximum of one minute. I suspect the example you gave is exactly what it was meant for. Better have a real good way of making yourself scarce afterward though.
Definitely a practical use for it's short duration. Sadly, if you look closely at the first sentence in the description, it only affects non-hostiles.
I suspect this cantrip should be titled "Enemies", because that is the only effect it absolutely guarantees.
The last few posts seem to be pretty close to what I'm thinking. Someone also mentioned FOX going towards reality shows. when you realize that the cost of "reality programming"(I prefer unscripted television)is much cheaper than shows that require say actors or some such, you realize they don't...