Roller blading is great, I agree with you. You better get on them again soon. On weekends from May to October I also tend to do 5 to 10 miles on weekends. Falling is always a great concern(I tend to crash a few times a season, but so far only minor scratches on knees and elbows). I finally have found out that looking at good looking girls while roller blading is not a good thing, it tends to bring you too close to the ground very quickly. Try keeping your eyes focusing on the road in front of you is the key. So the last couple of years my crashing frequency has dropped