...when they start your session by saying "I got this sweet new routine from bodybuilding.com."
This has happened to me. Not my trainer, but a trainer in the gym where I used to train and yes, he was using it for a client.
Current PRs at 242, raw w/ wraps- 525, 355, 605, 1485
Roboro tui, perimo vester adversarius
(Build yourself, destroy your enemy)