Wife to hubby: Darling in pictures of Shiva-Parvati, Shiva has a Trishool.
In pictures of Vishnu-Lakshmi, Vishnu has Chakra in hand and pictures of Rama-Sita, Rama has bow in hand.
But in case of Krishna-Radha, he has flute in hand. Why is this?
Hubby: You see dear the three God's whom you mentioned first are with the wives. That is why they have weapons.
Krishna is with his girlfriend. Hence no weapons required. This shows when it comes to dealing with wives, even Gods need protection.