I have never hitched myself but I have picked up a few over the years.
Here is my most recent hitcher story posted on my local forum:
Picked up an interesting hitchhiker this morning
His name was Peter. Looked like a stranded business man standing on the onramp of I94 at hwy20 in Racine. As I rounded the corner he flipped up his thumb with a hopeful look. How could I resist?
I unlocked the door and he hopped in and said, "Alo, ma name is PeeTah!" So I asked him where he was headed and where he is coming from. He proceeds to tell me that he is a Faith Healing Minister from South Africa and he is on a mission in the states. "People in wheelchairs walking, blind people seeing... miracles Dan, Miracles!" Apparently he was down in LA after Katrina hit and headed north after that settled down a bit. He then told me stories about South Africa and how wonderful it was until the blacks took over the government and started forcing the white to leave. "Damn savages my friend!"
So I took him all the way to the the Bluemound exit of hwy45 (about 35 miles). Before he got out of the car he blessed me and of course hit me up for some cash. He thanked me, called me an Angel and told me the Devil would be mad at me for helping him. As I was driving away I got a nasty headache - ****** Devil.
Later that day I had a funny IM convo with the wife:
[16:11] I'm soooo cool: what is with your name?
[16:11] Blessed by a Healing Minister Hitchhiker from South Africa: hah
[16:11] Blessed by a Healing Minister Hitchhiker from South Africa: I forgot to tell you
[16:11] Blessed by a Healing Minister Hitchhiker from South Africa: I carpooled today
[16:12] I'm soooo cool: ok so are you going to be home late?
[16:12] Blessed by a Healing Minister Hitchhiker from South Africa: no dork
[16:12] I'm soooo cool: and who did you take a ride with?
[16:12] Blessed by a Healing Minister Hitchhiker from South Africa: um... a HEALING MINISTER FROM SOUTH AFRICA?
[16:12] I'm soooo cool: ok what ever
[16:12] Blessed by a Healing Minister Hitchhiker from South Africa: lol
[16:12] Blessed by a Healing Minister Hitchhiker from South Africa: i picked up a hitchhiker this morning
[16:13] I'm soooo cool: WHAT THE F ARE YOU DOING DON'T YOU THINK THAT MAYBE HE OR SHE WOULD F KILL YOU OR SOMETHING
[16:13] Blessed by a Healing Minister Hitchhiker from South Africa: nah
[16:13] Blessed by a Healing Minister Hitchhiker from South Africa: not Peter or pEEtAH as he pronounced it
[16:14] I'm soooo cool: don't you ever do that again do I have to rent the hitchhicker for you to study?
[16:14] Blessed by a Healing Minister Hitchhiker from South Africa: yeah yeah, it wasnt 2am and raining ok?
[16:14] I'm soooo cool: it doesn't matter
[16:15] I'm soooo cool: so what did you get for the ride

[16:15] Blessed by a Healing Minister Hitchhiker from South Africa: Why - BLESSED of course
edit: added IM convo