Riding without a chain

Tip of the day:

When one is rolling their bike around a carpark (you know... to be sure the tires are on correctly and feel OK), but without a chain on the bike (you know... 'cos you have taken the old one off but yet to fit the new one), do not stand up on the pedals!

If you stand up you'll forget there is no chain on your bike and try and pedal off, smashing your leading knee against the bars and almost OTB'ing at the same time.

Doh!