I did that only once on my previous bike. On the Varadero, I was riding it down the A1M (going to pick up the Fazer, funnily enough) when it spluttered and died. Just about made it off the motorway, but had to push it round round the roundabout and into the service station! Five L of unleaded later, I was pootling happily dwn the road again, and feeling even gladder to be rid of the bloody thing!
(Again - fuel tap)