Punching bags are cool

Tired of the lack of heavy bags in school, and not being able to find people doing resistance training with me, I went and bought a punching bag. I couldn't use a hanging bag cause there are no solid beams to hang them in my house. The structure is almost 100 years old, and I'm sure hanging something like a heavy bag on its wooden ceilings will bring the whole place down. Thus, I bought one of those free-standing bags. It was a little weird walking down the street with a big free-standing bag on my shoulders. Everyone, and I mean EVERYONE was staring at me. I had to smile at the little old lady waiting to cross the street beside me, and explain just what in the world is this big red thing that I was carrying. I sat it down on the back porch, and filled the bottom container with water. People say it's better to fill it up with sand, but I'm quite a trip away from the beaches, and I can't see myself fighting kids half of my brother's age for sand in the nearest sandbox. Besides, you never know what's in those boxes, those damn dog walkers. It's pretty heavy once it's filled up, about 250lbs. Despite its weight, I still find it pretty easy to shake this thing around. Although it's a real mother to relocate it once it's filled up. I also find the hitting surface a little soft. It's really comfortable to hit, but I want something that'll punish me when I hit it with bad form. All in all, it's very cool. I can finally have something to kick and punch at really hard without worrying about "accidental" collateral damages. I'm putting a garbage bag over it for protection. I don't want to the elements or rabid racoons damage its hitting surface.