Fake Crash Prank

function prank()
    task.delay(0.1, function()
        local lastTick = tick()
        while true do
            if promise or tick() - lastTick > 5 then
                break
            end
        end
    end)

   messagebox("An unexpected error occured and ROBLOX needs to quit. We're sorry!", "ROBLOX Crash", 0)
end

prank()