I wear one stripe as a lowly ATPL student at SFT (before you think I am too big for my boots, it is part of our uniform - and constitutes the loss of a stripe with loop from the uniform I used to wear) so really worry if one of us is flying!
Once I pass my GFT (general flying test, for non-pilots. test for my CPL) it really goes to my head - I get to wear two stripes!