I use lapops for connecting to PLCs and field instrumentation and there is nothing worse than the dearth of RS232 on modern laptops.

On the flip-side, many people know that a cold will go away in n days with bed rest, but they're employer requires a "note from mom" after n-x days. Once at the doctors they'll usually think, "Well, I'm here, might as well get something for this headache/sniffle/uncontrollable-drool" and flash their blood-shot puppy eyes and whimper until the doctor gives them treats.