That's your call Noel, and a reasonable one.
Personally I do log it, as I invariably learned something from the experience. Offhand however, it's well under 0.1% of my total flying experience, so I'm hardly gaining much from that!
Incidentally, a lot of years ago I was in court (in the UK) as a witness in a prosecution of somebody who inadvertently got airborne in an aircraft he wasn't qualified to fly, then crashed it. It was decided by a jury that he was not guilty of illegal flying, as there had been no intention of flight, and therefore it wasn't legally a flight - despite there being air under the tyres for a short period.
G