I'm thankful the driver's side of my VW van doesn't allow locking the door without closing it first. Unfortunately, the sliding door and passenger's side allow

I'm thankful the driver's side of my VW van doesn't allow locking the door without closing it first. Unfortunately, the sliding door and passenger's side allow locking while open, so I'm always worried about locking my keys in when locking them even though I have 2 sets of spares.