No matter how far a society comes, there will always be queue jumpers.
They are the self centred and ungrateful. Half identify themselves as alpha dogs in a dog eat dog world. The other half are nothing more than absent minded. All can find their way into your client base where they want everything first and debate every dollar for dollar.
Recognise them early and get them out.
Suggest they take service with a cheaper competitor or set your terms and prices beyond their means.
Queue jumpers penalise the patient, frustrate the otherwise friendly and destroy the community surrounding your business.
It is not your responsibility to regulate queue jumpers but it is your responsibility to remove them. Good communities are too often corrupted by bad eggs. Loyal fans leave and business models collapse.
Protect your few true fans. Boot those who don’t suit.