My co-worker walked over to my desk (I work 3rd shift and from home mostly but every now and again go into the office) I had on a ballcap, mainly because my head is two tone right now until I can get some sun on my dome, but he immediately saw I had shaved and said something about it. I removed the cap and his jaw dropped and he was like "WHAAAAAAAAAT!? WHAAAAAAT!!?" and started laughing. LOL
I was on a bridge call and couldn't really talk about it as we had customers on the call as well. Not sure if it was a positive reaction. Later I went over to his desk and he said "Wow you really went all the way and asked if I did it because I just got tired of messing with the hair. (I wore a system before.) I said yeah that was it. I was pretty sure he knew. We've worked together for about a decade., but he never really let on he knew. Anyways even with the head shaved it's pretty obvious I was balding on top. I'm not very good at shaving right now and don't get a super close shave. I guess he was just being polite.