If I exceed the rdp suggested Dive time I will do a safety stop. If it's recommended for 60 mins Dive time at 10m and I'm less than 10 minutes away from 60 minutes I would do safety stop. Unless my friend is in trouble, any kind of trouble, I would skip it completely and help my friend.
If you exceed the PADI RDP, it's no longer a safety stop. That would now be a mandatory deco stop.
The good news is, the RDP states a NDL of 205 minutes at 10m. Unless you have the lungs of a fish, almost nobody will hit 205 minutes on a single tank.
Because you mentioned 10m specifically, interesting tidbit about diving physiology: During early decompression studies by Haldane, he observed that humans could surface directly from an indefinitely long dive at 10m without any DCS symptoms. This was the basis for Haldanian decompression models. Decompression theory gas come quite a long way since, but most will still allow an insane amount of dive time, that recreational divers are very unlikely to hit, at 10m before incurring decompression obligations.
Sent from my HTC One using Tapatalk