Has this ever happened to anyone else?

Towards the end of my 3rd pass on Monday (I use 2 on a normal day, and 3 on a special day when I want to be BBS) my razor all of a suddent felt like a 2x4 in my hand. I felt that I had no control and just put it down, rinsed off, put on my aftershave, and used a cold towel.

This has never happened to me before. It's like my muscle memory totally disappeared.

BTW, Tuesday and Wednesday's shaves were fine.