wrong chris, you start training recall in a pup just about from the first day. At every meal, you call them is a silly high excited voice and praise and feed them when they come. As they learn to come to you when you call, you do it in the garden, then against distraction. When they are old enough to go out in public, take the dog out with some delicious treats. Either let them off lead in a totally secure area or in a very sage quiet place, keep a light trailling line on pup give it a very short while and call. If pup comes back give mega praise and treats, if pup doesn't then run in the opposite direction calling excitedly or hide and call.
Can I know why you ask?