Worst one iv'e had is when an umpire signalled a 4 against us and it stopped about 5 foot from the boundary.
Was once wided for a ball the the batsman hit through square leg...
Had one the other week who warned us all before we took to the field that due to new rules this season when a bowler comes on to bowl he can only bowl a couple of practice deliveries to another teammate if the ball doesn't touch the ground.....however I have seen all the bowlers in the current test match bowl the ball into the ground before starting a new spell, was he right? Have the rules changed? We lacked the skills to do this so ignored him anyway....!