For old times sake

A couple celebrates their 30th anniversary by visiting the fence against which they first made love.

The husband says, “Come on, let us do it again. For old times’ sake.”

The wife agrees, they both undress and repeat the act.

Afterwards, the husband says, “You’re even better than you were 30 years ago.”

His wife replies, “That fence wasn’t electrified 30 years ago!”