Silly ideas:
- Shifter block. Shifter won't move when sidestand is down.
- Sidestand retractor. Like a hammer and sear, when shifter is moved, sidestand retracts.
- Sidestand warning. If sidestand is down and shifter is moved, an audible warning, or cattle prod wired to the seat.
- Motion sensor. As soon as motion is detected on wheel or sprocket, then if sidestand is down, do something alarming.
- Pharmaceuticals. Something to help us remember.
- Gomer. He runs alongside, tellin' ya whatcha doin' wrong...