Fake tickets to barcelona match
This happens usually in most tourist areas of Barcelona. There is a chance (especially if you are a man), that you can be approached by a random dude that will offer you tickets for Barcelona match. He gonna tell you some story and will try to sell you this tickets for a good price. The tickets look like the real deal but they are just knockoffs. So if you buy them you not only will be able to watch the match but you can put yourself in trouble because you will have to explain why you have fake tickets for a soccer match. So if you want to avoid this always buy tickets in licensed retailers.