I remember in 1980 I thought I would give this a go. The guy, who they were just bringing back, crash landed on top of two beach umbrellas. I turned around.
Still have never done it.
I have had many biopsies done at Bangkok Pattaya hospital which turned out to be basal cell. They always went deep and I never had to return for more cutting in that specific area. This was backed up by the biopsy report that stipulated the excised sample was 'clean round the edges."