How would I cancel a function?

[HearTheThing (Increstagator)]

For example, it sets the walkspeed to 4. then the function ends. Would it do that or something else?

[Azarctic]

Now I’m confused. Read these comments, I’ll have to do some research because my understanding of return is completely wrong

local aBoolValue = false

local function test()
	
	--[[
	.
	.
	.
	]]
	
	if not aBoolValue then
		
		-- This stuff will run
		
		print("one")
		
		return 
			
		-- I thought this stuff wouldn't run, but it actually does lol
			
		print("two")	
	end
	
end

test()

[Azarctic]

Oops yea messed up syntax, it’s do return end instead of just return, then it won’t print “two”