One spring Monday morning...
S: "It's so great that we can drop off your car at the shop today and check out the house also before we head off to work."
T: "Yes, we can kill two birds with one stone."
S: "Kill? That would break the precept of not harming other beings, mentally."
T: "Ok, we can visit two birds with one stone!"
S: "What is the intention behind the stone? Why not visit two birds with one piece of bread?"
T: "No killing or the intention of killing, just visit 2 birds with 1 stone!"