Like a lot of pilots I've had a few and from the inside it is very, very bright! This is amazing footage of what it looks like from the outside. I'll try and be more afraid next time it happens
I did once see a glider get hit by lightning when it was still attached to the winch cable. Well, if you go and stick a 1000 foot lightning conductor near a big, black cloud then what do you expect. The pilot was mildly shaken.
Unlike the other glider who happened to be in the wrong place at the wrong time and got blown to bits:
http://www.aaib.gov.uk/cms_resources...pdf_500699.pdf