I CAN'T wear my seat belt as I have sore breasts;
I WASN'T wearing my seat belt as I was getting changed;
I KEEP getting in and out of the car and it's a nuisance.
I COULDN'T stop for the red light as I was going too fast;
I COULDN'T stop because it's a heavy vehicle and I normally have a wood chipper on the back;
It's a V8, you try stopping it.
I HAD to speed to get in front of you;
I'M HURRYING to the service station because I am running out of fuel;
I'VE got diarrhoea;
I WAS running late for a funeral.