mob/proc/combat()
var/obj/S = input("Technique to Use?","Tech")in src.techs
src.gah = S
if(S.vigor != 1)
src << "You use [S], which has an aliment of [S.ali], and a power of [S.power]"
src.choice = S.ali
src.blam = S.power
var/mob/M = src.opponent
if(M.chosen == 0)
src << "Waiting for [M] to choose a technique."
src.chosen = 1
if(M.chosen == 1 && src.chosen == 1)
M << "You use [M.gah] with [M.blam] power and an aliment of [M.choice]"
src << "You use [src.gah] with [src.blam] power and an aliment of [src.choice]"
src << "[src.opponent] uses [M.gah] with [M.blam] power and an aliment of [M.choice]"
M << "[M.opponent] use [src.gah] with [src.blam] power and an aliment of [src.choice]"
if(src.choice == "Rock" && M.choice == "Scissors" || src.choice == "Scissors" && M.choice == "Paper" || src.choice == "Paper" && M.choice == "Rock") // Player 1 winning combos. Rock/Scissors, Scissors/Paper, Paper/Rock.
view(1,src) << "[src]'s [src.choice] aliment attack beats [M]'s [M.choice] aliment attack!"
var/ouchies = src.blam - M.blam
if(ouchies <= 0)
ouchies = 1
M.Life -= ouchies
if(M.Life <= 0)
world << "[M] is defeated!"
src.frozen = 0
del(M)
else
M << "Next round.."
M.combat()
src << "Next Round.."
src.combat()
if(M.choice == "Rock" && src.choice == "Scissors" || M.choice == "Scissors" && M.choice == "Paper" || M.choice == "Paper" && src.choice == "Rock") // The other winning combo for M.
view(1,src) << "[M]'s [M.choice] aliment attack beats [src]'s [src.choice] aliment attack!"
var/ouchies = M.blam - src.blam
if(ouchies <= 0)
ouchies = 1
src.Life -= ouchies
if(src.Life <= 0)
world << "[src] is defeated!"
M.frozen = 0
del(src)
else
M << "Next round.."
M.combat()
src << "Next round.."
src.combat()
else
src << "Vigor Techs aren't quite in. Choose another technique please."
src.combat()

The challenge verb calls that proc for both people, but the person using the verb gets to choose it for both people? Please help me find out whyyyyy