In one way, selfish
but I accept that, sadly, some [many] employers are even bigger cunts by forcing people to attend work when they are ill / infectious.
I will tend towards being more relaxed about this, preferring staff not attend if they would be spreading whatever lurgy that they have to the other staff.
Someone who is ill would not be working at their best, anyway !
I would appreciate it if said member of staff offers to "make up" time when they have appointments for dr, dentist etc.
However, if someone takes the p155 and abuses my tolerance then they had better watch out !