problem

[MAB]

not working... no debug messages.. no explosion or effect happens... showCursor works but idk about the events

function start() 
showCursor(true) 
addEventHandler("onClientClick",localPlayer,explosion) 
end 
addCommandHandler("ilovetoburn",start) 
  
function explosion (button,state,a,b,x,y,z) 
         if (button == "left" and state == "down") then 
               createExplosion (x,y,z,1,true,-2,true) 
               createEffect ("teargas",x,y,z) 
        end 
end 
  
function stop() 
showCursor(false) 
removeEventHandler("onClientClick",localPlayer,explosion) 
end 
addCommandHandler("ihatetoburn",stop) 

[MisterQuestions]

Change localPlayer to root.

[MAB]

u want that function to happen to all players?

[Buffalo]

Root not necessarily means it will happen for all players. Read event wiki to understand whats source element of the event.

addEventHandler("onClientClick",root,explosion) 

In this case this will be added for the one you trigger "ilovetoburn" event for.