[Closed] 'Rip Off' bike shops?

This has probably been done to death elsewhere, so feel free to direct me to any relevant threads but thought this might be interesting.

I'm asking on behalf of a mate who doesn't use STW - it's some sort of loosely academic research thing, but initially just gathering experience and opinions.

When do you feel you have been 'ripped off' by a bike shop? No need to name specific retailers here, just details of what products/ services were involved/ how you thought you had been 'ripped off' or whatever.

Not trying to start any sort of confrontation, just gather a bit of experience and opinion on the matter.

FWIW, I reckon the concept of 'rip off' bike shops is largely a fallacy fuelled by the likes of CRC et al, but I've never given the subject much thought.

Any input appreciated - let's keep it friendly.

Cheers everyone.