Why should you be careful of the photos you post?

internet is a public space.

When you post a photo, anyone can take it, save it and re-use it as they wish.

A photo showing you in a situation your don't want to be seen, can be used against you, years later.

Always be carefull about what you show to the rest of the world.

Also, more and more employers check their candidates' facebook pages, to see if they'll hire them or not.