depending on what you actually wanted
I'm assuming you want him to hmm... walk off screen after being talked to?
I wouldn't even use a switch, try out the move event command, think it is on page 3 near the bottom
put in the directions you want, then a handy "change graphic" (it's under move event) to something unseen. and bingo is your uncle. if you wanted this to only happen once then flick a switch to make the changes perminate
for the other have him set to the trigger condition touched by hero then have the game over comand in the event.
stationary mode need not be touched, unless you want them moving around constantly before or after being talked to