The thin red line....

So I slathered on masses of sunblock,
(there's a 'two for one' offer in Tesco.)
Once I'd slathered on masses of sunblock,
I thought I could stay out, al fresco....

I had covered my body with sunblock,
but bizarrely, my head is now smarting.
When I covered my body with sunblock,
I forgot to put some on my parting....

Owwwwwwwww.......