sorry to be a bore but I'm totally with slasher on this question. I faced the same situation as he seems to have had and my reply wa that I didn't want to have to climb over the fools body in the event of an accident. I would love for the crew to stop the presentation of the video and ask that passengers
watch and start the presentation again. I have worked in the oil, gas and chemical industry for 35 years and safety at all times is paramount. The sad thing is that I see at times flight crew travelling in uniform ignoring the presentation. I would have thought that these would be the people to set the example.
Besides, isn't it fun watching the people doing a piss poor parody of sign language in a one square inch box amazing? I realise that loosing one of your sences increases the power of another sence but hey.......the deaf must have amazing eyesight.