reliable. I don't go places like Shelly does with the chances of fleas. the places I go are to the Mayo clinic, work, and to the Crown where I go to have my lunch. those places we don't see many dogs just maybe at the clinic but we don't usually get close enough as we are usually cruising to the next appointment. the only place where he might have a chance of getting fleas is day care but they monitor that closely as they don't want to shut down to fumigate. but as far as using a cane I don't anymore. Clyde is a fast learner thank goodness. and now when the snow is down and I can see the grass it is easier for me to use the side walks. I have some spots on the sides of my eyes where there aren't blind spots so if I look forward and there is a drastic enough change in the brown or green of the grass and the side walk then I can stay on track but when there is a change like curb cuts that's when I have trouble. or if it has snowed and it is all the same. if I look out of the corners of my eyes hard enough I can see some shapes but it is very hard so I worked really hard with Clyde the first six months on guide work, directions and elevation changes and I used my cane then I started to gradualy stop using it the next six months when we both knew what routes we were taking to what place. I think the time I stopped using it was at the crown when we just had to go down the side walk a little then across the street. he had curb cuts down and there weren't any bad spots in the side walks ( it is by St. Mary's hospital part of the Mayo clinic) they keep everything immaculate even in the winter all the sidewalks are cleared when it snows even as it is snowing. but anyway when we get to the Crown I need both hands to open the door and drive my chair and hold the dog (leash or harness handle) and I couldn't hold the cane. and in weather with -30 you want to get in fast!! so now we don't use the cane. when I got my new case for my laptop there is no room for it in or on my chair. I have to say if you are disabled Rochester, MN is the place to live. especially if you are in a chair. all the busses are accessible and where I live and where I get off the bus are kept clear of snow by either the residence or the city where the stops are. so with proper clothing we can still take the bus in the winter to place and get out. this winter I have two custom made coats for Clyde one is a fleece coat with a flap for the handle and the other is an outer coat that is not insulated so it can be used in the summer months as a rain jacket. it to has a flap where the handle goes also. it is awesome and we have muttluks for boots. the ones with fleece lining. he is dressed better then me hahahahahaha. well enough babbling. I don't carry a cane anymore but probably should. theres my final answer. Ridge and Clyde Guide/SD