(Did you know that with the proper motivation you can climb a 8ft high stockade fence in full turnouts with airpak on!)
Back when I was still an active firefighter, I had one or two of those "whoa time to go" moments, and the gear gets REALLY light for a few moments.
I was sounding a floor in a fully involved house with my Halligan during a primary search - THUMP the floor - crawl a bit - THUMP! THUMP! Whoosh! the Halligan went right through the floor and fell out of my hand...time to follow the hose back out...quickly.