It might be motivation; it might be an excuse. But many solutions are not 100%. Same goes with our technology. A train driver can jump on a train without checking in and blame stress. But there is still that obstacle, he/she knows that next time this happens again, eyes will be looking at the matter.
Our system is up and running 24/7/365 with connection to our servers. If a person blames the system for misreading, our experience so far is that there was an addiction behind the excuse. But, and there is a big but, we have been thanked by the monitored person for an early detection and thereby that help was still in close reach. Our system will not tell how drunk you are, only if you pass or not. An indication should always be followed up with an exact measurement conducted by occupational health care.