2 weeks ago in SZ I put my suitcase in the trunk of a taxi, throw my backpack into the back seat and get in the front seat.
My backpack has everything, expensive PC, a few passports, credit cards and licences, about $1000 cash in about 6-7 currencies.
I tell the driver where I want to go and since it was a rather far away destination he decided he did not want to go. I get out take my suitcase and start to walk away. Sudennly the driver get out of the car calling me to to get my backpack^^
I left a smartphone in a taxi in SZ about 8 months ago. I called it he answered it but I never got it back. One of the rare fares that I forgot to take a receipt.