Mine include:

Cabbie suggesting we pick up girl from bus stop on the way to club. we did and yes we had to pay the extra for his amusement.

Cabbie runs out of fuel. Gets help, gets to petrol station, wants to charge us extra for the time!

Ordering 2 taxis just in case. Anger ensues.

Cabbie looking on the floor for his phone while driving. Seemed stoned.

Doing a few hundred miles in a random cab because the whole train system was screwed up.