I was reading up, very intensely and seriously, on some information I needed for a presentation. The article I was browsing through was on skin when I came across the following passage:

The thickest skin is on your heels, where the stratum corneum averages 86 layers of cells deep.  The thinnest skin is on your penis, if you have one, where the stratum corneum is only 6 layers of cells deep.

Yup! Work can be fun sometimes.