I had to design a cover because the equipment operator would relax by using an under the crew station connector shell as a foot rest. They were resting an ankle on the crossed leg and bracing their foot against the connector under the counter. The user kept complaining the cursor would just randomly move, but could not reproduce. We had engineers on fly-alongs so the operator would be on best behavior and posture. I don't know who finally understood what was happening.
The connector was on a force (rather than displacement) joystick. My company designed the electronics; the installation was managed by a subcontractor with "experience" in such installations and should not have left the cable or connector exposed to such footloose behavior.
I won't name the aircraft, but it was to make deliveries in close proximity regardless of the weather conditions.