How am I being ignorant. The situation is fairly simple and known by everyone the moment the contract is signed, if a player signs a 5 years contract, the club legally expect the player to be their employee for 5 years. A club has no legal, moral or reasonable reason to expect anything else and they have no right to expect a transfer fee at any point.
And while I know that there are ways around may things, there are no legal ways around everything, what you are suggesting is illegal. No amount of emoticons or acting tough will change that, it's also immoral and demonstrates low integrity.
Finally it's important to keep in mind that the logic of transfers in Football is an oddity in professional sport, the norm in most sport is free agency where athletes fulfill their contracts and leave free at the end.