I'm careful, but I don't know that I am extra careful. The only person I've ever touched with my stroll was a lady who ran to get in front of me on Main Street then stopped and turned around right in front of me. She ran into my stroller so hard that the stroller ended up being shoved into me. And, of course, she gave me a dirty look. Some people...
TNP store things besides water bottles under their stroller.