I Am A Bad Driver

I was round my friends house the over night and I was backing my car out the drive when their was this bump and then I had to rev the enjin to get the car to move properly. I new my back tyre was almost flat and I fort maybe it was that but when I got out on the road it all felt ok again so I just carryed on home. Anyway my friend called me next morning and said I must of drove across there flower bed in the dark cos its got massive tyre tracks in it and all the plants have bin squashed. Oops!