I bought some very nice heavy leather boots when I was working in a solid state synthesis lab, mainly with selenium and sulfur compounds, a few years back. I probably did spill small quantities of some very basic/acidic solutions with some selenium/selenate content on them a few times.
I don't work in a synthetic lab anymore, but I wore them again this weekend. It feels strange though, perhaps just from ingrained lab safety habits, to touch my face after putting them on etc. My gut feeling is that a) rain has washed away anything which was on them b) most chemists I knew as a research student wore their normal day shoes in the lab, so it should be fine. But what are the standard safety rules on this? Is it generally okay to wear the same shoes in the lab and in daily life?