<human>: Can you succinctly summarize the text in 1-3 sentences?

This happened just now. Let me preface this by saying my friend and I have identical razors and he often uses my shower. He keeps his razor in the shower and I keep mine near the sink, so we don't get them mixed up ever.
Now today I was getting ready to take a shower and decided to shave my bits and pieces. I used my razor and everything was fine. After I shaved I continued with my shower, washing my hair and body, etc. Now the FU happens when I somehow knocked both mine and my friend's razors on the floor of the shower. They are identical so I wasn't sure which one I had just used to shave myself. I just had to guess and I put his back and then put mine away. Now I'm worried that I got it wrong and he'll use the razor on his face next. I am pretty sure I guess right though but it feels like one of those shell games where they mix the things around.
<bot>: My friend and I have identical razors, I used mine to shave my downstairs, then I dropped them both and I'm not sure which is which.