I am of the opinion that you should dry you feet before placing your feet on the bathmat.
DP seeks to think the bathmat is there to partially dry his feet and then splodge around the rest of the bathroom leaving it soaking.
Give him his due he drys the floor (with his towel
but that's another thread) but if I'm second in when I step out the shower it's onto a soggy cold bathmat.
Who is being unreasonable here?