I don't generally wear slip-on's and loafers either not because of possible incidents but for two other reasons. 1. My podiatrist tells me to stay away from them if I am walking anything more a couple of blocks - some thing to do with over pronation of my gait and 2. they show socks when I walk.

I do, however, wear them from time to time at the airport and through out the flight. then, I change to proper lace up's right after I land.

I think this is the model I have.
http://www.amazon.com/Mephisto-Forti...=pd_sbs_shoe_2