Thank you everybody for your comments. I have actually discussed them with my mother this afternoon because, well she never wanted a dog to start with and any problem Blondie causes will be redirected to me, without doubt. But she understands that it wasn't his fault (Saje, I know he was horribly mis-named, but Blondie's a male... It's the translation of the word "Guerito" in Spanish which means Little Blond and we wanted to give him an English name... Infamous one we picked, poor thing). Around here it's not a problem, people don't realize it's a girl's name
Anyway... Yes I live with my parents, sister and grandmother. They all love Blondie to death but we were a little worried about his agressive behavior. Yes Renee I know it was actually torture to him, and Dad was hinting that maybe the kids hurt him while playing. You know how kids are. I guess we'll never know, but we'll take action next time those kids, or any kid, comes around. Thank you all very much for the valuable advice, I'll make people respect him from today on! Who cares if I'm the "bad guy".
He did OK today, of course he looked more tired than usual, took more naps and barked a lot more at passing people than he does on a normal day. Luckily, my parents understood why he acted that way yesterday and didn't resent anything. I'm still scared of his reaction next time he sees those kids (hopefully not soon!!!) and I surely don't want him to react the same way towards other kids.
Finally, I'm posting a pic for you to see poor Blondie's "torturers" haha. See how she's trying to get hold of him, and he's trying to escape? Poor baby