It happened on the B3081 near Verwood - he had to be cut free by firefighters.
Hypnotist's Mishap Leaves People In Trance
Three people were left in a trance on stage when a hypnotist knocked himself out during a show in Dorset.
Entertainer David Days, from Weymouth, was performing at Portland's Royal Manor Theatre on Friday evening when he tripped over an audience member's leg.
He was in the middle of bringing the participants out of a hypnotic state and could not be roused by his stage team.
The audience was asked to leave the theatre but they initially thought the commotion was all part of the act and applauded.
After a few minutes, Mr Days came round and was able to "wake up" the hypnotised trio.
Mr Days, 37, later wrote on his Facebook page: "I would just like to let my fans know that I am completely fine.
"A little bruised, but that's all. Thanks for your support tonight, it was a great show with some great volunteers."
His manager Tara Nix said the three participants were also "fine".
(c) Sky News 2011
Violent crime was up 37% in the last year. Police say it's mainly due to a change in how offences are recorded.
Anne-Marie Ellement took her own life after claiming she'd been raped by two colleagues.
48 Zany Zebras sculptures were sold off to raise money for Marwell Zoo.
Recently Played Tracks
Deposit £10 to get a £40 Welcome Bonus - That's £50 to play bingo, slots and more!*
Over 50 tracks to make you feel-good. New album out now...
Find your local four day weather report here.
What's happening on the roads where you are?
Make Heart the soundtrack to your day and you could be a winner with great prizes up for grabs throughout the day.
Find out more about some of the companies advertising on Heart.
Get some great ideas on how to advertise your business on radio, online and on mobile.