Life, Love, & Laundry — habits

Is there anything that you do or not do, even though you "know" in your head, that is it not weird or wrong?  I will give you an example....(please don't judge me! hahaha). Whenever I yawn, I always cover my mouth/nose. Why? Because once someone commented that my nostrils flare when I do it. That's it...I was probably 10-12 years old, so I have been covering up my face for yawns for 30 plus years...because 1 person commented on how my nose looked when doing it. Did I bother looking around to see if, indeed, that was a normal way...