Lucky bloke, coulda been very nasty, Iv only ever had two full unexpected tank slappers and "just" survived them, one on the triumph when the fork seals went and one on Thursday on the Ktm which was very self inflicted by not looking far enough ahead while riding fast on lumpy grass. Both involved a change of underwear and a long sit down to reflect on my life choices afterwards. My last zzr11 had a nasty head shake but it never caught me unexpected.