I wouldnt do those things either, whether theyre perfectly safe or not. Theres still a risk involved and i dont want to be the one feeling guilty if something was to go wrong. Its the same with the foods you have to avoid during pregnancy. I maybe a little anal but id rather be for 9 months of my life and know that my baby is perfectly fine that do or eat something and my baby to be harmed because of it. If other people see differently then thats my choice and thats their problem.
Thats my opinion anyways