I have a 1999 Eclipse with a not-so-convenient self-lock feature.
If you unlock the doors with a fob, you have something like 2 minutes to physically open the driver's door. If you don't, both doors will automatically re-lock. I have locked myself out of that car by unlocking the doors with the fob, opening the passenger side door for quick access to something, and then leaving the keys sitting on the front seat in the process. Since I didn't open the driver's door, both doors lock after 2 minutes and I'm hosed.
I'm a slow learner...so that's happened to me a few times.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)