I think a more appropriate idiom would be "in the thick of it", adapted here to be "until they're in the thick of it." It communicates that you're in the middl

I think a more appropriate idiom would be "in the thick of it", adapted here to be "until they're in the thick of it." It communicates that you're in the middle of something chaotic/stressful like a jungle. The phrase is very natural for native speakers.