When I first dated my future wife, at some point she mentioned that she can't ride a bicycle. She said she could balance but after ten feet she would lose it. so I went out and purchased her a brand new bike since and decided to teach her since where we lived was a quiet area. Frankly I didn't believe her, it just seemed incredulous.
Sure enough, I'm standing there and help her start up and she's doing fine. Then BAM!... right into a parked car. Parked! Man, I just started to laugh my arse off, it was a funny thing to watch as she was going really sloooow. I couldn't believe it. We had a pisser of a day and she ended up way more confident and today rides miles and miles with no worries for anything stationary...