Glitch
Historical / Guest
Im not big on IRC anymore but I think this is it...
First set an alias such as
trivstart:/load trivia.mrc
and set another alias such as
trivend:/unload trivia.mrc
Then ...
on *:trivstart:/mode $chan +v (the persons nickname)
on *:trivend:/mode $chan -v (the persons nickname)
If the person is in the channel then it will voice em', if there not then it shouldn't do anything besides say there is no such nick.
I hope it works, if it does tell me, I might get back into scripting again 
Glitch
Historical / Guest
Makes far more sense than mine. I just threw mine together as somewhat of an example.