I remember some 25-ish years ago, when the first bonded aluminum frames came out (followed by bonded CF frames), that one of the arguments against them was that, eventually, at some day in the future, the glue bonding the frame together would fail, and you'd have a useless frame.

So, who here has ever had a bonded frame fail like this, either aluminum or CF? I'm curious as to whether the problem is anywhere near as bad as the naysayers predicted.