Having known someone who had shingles very badly, I get it completely. That shit is painful and can last for weeks. It won't kill you, but it will make you wish it would, apparently.
My insurance company covered the first one at 50, but won't cover the better one until I hit 60. So I've got five years to get through without getting shingles - fingers crossed. I don't mind the commercial, although they do seem to be running it a lot lately.
The singing hoo-hah commercial is so, so, so terribly stupid, I can't even with that one.
I have a lot of bras where the strap adjuster is on the back of the strap, but that may just be because I have the strap as tight as possible. And no, I can't adjust them while wearing them. It is a weird commercial, though.