i'v got to ask a question here. What do you think was the first transportation application of driver monitory systems? Many gess aircraft, but alex public transit instruction. Shi mini sio. Mining tricks inina, really. Wal have you ever seen physically that the caterpillar mining trucks? Ok? These things are huge, like as big as a cabeger two, 80 eights. That a mineas i in some cases, as big as a house topenty where you live,. and how big a houses, but ti it. So they're big and they're heavy. And if the operator falls asleep operating one of those machines is about a million dollars an