My longest lived sunglasses were some wraparound style Raybans, had them for around ten years I think. They'd definitely used up their 9 lives and then some. When I sold my Mini back there, I left them tucked in the sun visor, and the new owner had to send them back to me. Dropped them countless times and was always mislaying them. When I moved over here they were still going strong. Visiting a friend's house I used the loo, and as I leaned over to flush they slipped out of my pocket and disappeared down the u-bend. I stared in disbelief, thinking that was it, but a few seconds later they reappeared! A quick wash and they were good to go again. Eventually an arm broke off them, fatigue I guess. Anyways, there's no way I'm spending a hundred quid or so for a pair now, cheap charlie for me 😎