I'm very new to traveling in general. When I flew on a long flight, the airline gave us blankets and pillows. I, having no idea that I was supposed to leave the blanket behind, took it as I collected all my things, and left. I had assumed that since it was a somewhat cheap blanket they were part of the ticket cost or something. I didn't badly want to keep it, but I was half asleep and very cold and I just grabbed it with my other stuff. No one said anything to me as I did it.
It wasn't until I got home that I rediscovered the blanket and noticed a tiny tag that said 'do not remove from plane.' Naturally, I felt terrible about accidentally stealing the blanket. Obviously, I will never do this again, but I still feel really guilty for having done it this time. Is there a way I can return it to the airline? Or should I just forget about it, having learned my lesson?
Sorry if this is a silly question, I just kind of panicked when I realized I had stolen it on accident!!
Just for reference, the airline in particular was Aer Lingus.