The problem with most of these systems is they can never cope with any edge cases. This means it works fine for 99% of the population but the other 1% can get stuffed.
It would be like having a robot deny you access to the office after work hours even though you only need to grab your car keys that you forgot. The system is designed to be secure so you can't talk your way past a robot. If it was a human, it would be much easier to reason with them (normally!) and find a solution that works.
Techies gonna tech though. "If there was a problem yo I'll solve it, check out my tech while the DJ revolves it."
replies(2):