well some of my installers have tatoos they simply have to cover it and thats it. None of em have it on the nek or head ore fingers . Folks in Europe are usually more liberal but there still enough stupits and ignorants out there (specialy in gemany where i'm from) so.. it is more ore less a must to cover your tatoos.
even i have one but i usually dont take my pants off in front of a customer haha