Headlight comes on when bike turned off

[tommygun]

Hi all,

Was enjoying a cold pint outside the pub when my neighbour called to say my bike's light was coming on and then off. Checked it when I came back but light was off. She said it sort of faded on and then faded out a couple of times. No alarm fitted standard 06 GSA. I searched the forum but couldn't find anything similar. Any thoughts?

 

[Ali-bear]

Bike almost certainly possessed by Satan. What do you expect if you drink cold beer? Stick to the lukewarm stuff and your bike will be fine.

 

[nedflanders]

If it's not the battery it soon will be

 

[WindyChuffer]

free courtesy light !

 

[OldCroc]

What had the neighbour had to drink??