Rubber gloves

So I had a friend bring his scamp over to my shop for an oil change and checkup.

So I guide him into the shop and i put a jack under it and get my tools ready.

He comes from the restroom with rubber gloves on, no tools in hand but just a pair of bright blue hands.

Who does that!!!!????

I don't see why, when a bar of lava will clean it up perfect......
I do under certain circumstances. In fact, I have a box of blue nitrile gloves sitting on the top tray of my toolbox right now. My Speed Shop Guy does the same and has for the past 20 years.

Why scrub why all you need to do is peel and toss?