If it wasn't for the ambient sound, I'd swear they just muted the audio the second time. I tried this myself with the industrial strong grip velcro and I still couldn't hear it unless I put my ear right up to it.
As a Recon Marine, I never carried a single piece of velcro with me into the field. I realize this guy is probably some wanna-be warrior, and just trying to tell a joke, but the premise fails.