i had being at work for 2 months and got the job of servicing the work ute, anyways in the pit under the ute and dropped the gearbox oil (not even realising). punched a hole in the oil filter and fitted a new one. jumped up top and put about 5 litres in the motor. checked the dip stick and it was way over the full mark. couldnt work out what was going on. so i put another 3 litres in the ute. checked the dip stick again and it was still over the full mark. jumped back under neath the ute to realise that i had drained the gearbox. felt like the biggest dick. but still get a laugh out of it now haha