I recall a news story back when I lived in CA about a motorcycle being struck by lightning. I thought it was odd because lightning is not that common in the central valley (compared with other areas) and that it happened on a dry day. As I recall, the direct strike exploded the gas tank and the rider was killed, explosion or subsequent crash I dont know which.
I suppose just about anything can happen, so no point in worrying about it.

05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter