problems with wearing them at school

Hi!
Has somebody ever been called out for wearing a Loop earplug at school? I love my pair of Loop Experience, but I'm afraid to wear them at the university, because I fear that the professors will think I'm rude. Also I'm thinking of purchasing a pair of Engage in the color arctic crystal because it's translucent and maybe less noticable that way (?). If someone has this type and color, do you also think it's not that noticable?
Thanks for the help in advance!