Yeah, physics can be a PITA.
I had a Tiger shot bounce off a T-70 turret in CMBB, a PIAT taking out a Jagdtiger with a lucky side shot in CMBO, a 50cal blowing up a Hetzer with a salvo in the rear in CMAK.
Also lost my very first King Tiger to a 80mm Mortar top hit. Ah, good times.

I had a Tiger shot bounce off a T-70 turret in CMBB, a PIAT taking out a Jagdtiger with a lucky side shot in CMBO, a 50cal blowing up a Hetzer with a salvo in the rear in CMAK.
Also lost my very first King Tiger to a 80mm Mortar top hit. Ah, good times.