Human habits... Weird.

Charlie and I are puzzled.   Why do humans have so little fur?  Also why, when they smell fine to us, do they go and sit in water or stand under a pouring shower, using disgusting soapy stuff?  I always offer the use of my tongue towel, which would start to get rid of the foul perfume stench for them, but the offer is always rejected.  Never will understand them.