If it was a 206, take a quick look at the brown stuff sealing the top and bottom parts of the MR gearbox for cracks (the two parts twist against each other), and the mast for crazing. Look under the engine at the pan and also the fuselage just forward of where the tailboom joins it for wrinkles. If you see anything there it was definitely over 120%!
110% on a 206 is a quick inspection, and 120% not much more. But as Nick Lappos once said - that's one out of your jar of sweeties gone!
It's always best to tell maintenance - engineers are very interested in their machines and like to know stuff like that. Sh*t happens and most of us have overtorqued at some time or other. In my case it was a sling load in a couple of gusts that came together from different directions before I managed to pickle it.
As for manoeuvres, you can get a lovely torque spike doing a power on recovery from autorotation if you don't watch it.
Phil