Proof that I am not tall

I hate it when an inanimate object reminds me that I am not as tall as I think I am. This happened when I borrowed my housemate's bike to pay some bills. I know how to ride a bike so I don't think there's any problem with me using it but the moment I tried to climb that mountain of a bike I started falling. My feet would not meet the ground and I can't even reach the pedal! I tried to do it several times until I fell to the ground. I ended up not using it and heartbroken. :p