What is the recommended legal procedure if a lone, heavily intoxicated passenger who is incapacitated and cannot communicate a destination attempts to board a taxi late at night?

1. Take the passenger onto a remote highway and abandon them in a field
2. Politely refuse carriage on safety grounds, or seek assistance from nearby police officers or station security to help contact the passenger's family or medical personnel
3. Drive around the city in circles for four hours to run up a large meter fare
4. Search the passenger's pockets and take all cash as an upfront deposit