Yes I have. I was tired, had a blinding migraine headache and couldn't find my glasses. Once the two aspirin in my small convenience packet were swallowed ( I even considered licking the packet for residue) I found my glasses, in my pocket and realised I was hodling the SPARKLITE upside down and reverse rolling the wheel. I swore so much God sent a thunderbolt down and gave me a whole field of ignited tinder <img src="/images/graemlins/grin.gif" alt="" /> Stop Worrying.