Not the gentlest examples of how to handle staff, competition and customers, but it may be worth contrasting your own approach with these three classics...

Coffee is for Closers - from Glengarry Glen Ross. If you don't succeed in sales, you can find another job:

No matter what happens, Pay the Bills! from Goodfellas:

The Risotto Scene from Big Night - a chef learns that making a customer happy is what keeps the place open:

What do you think - still relevant, out of date or timeless?

Hat tip: Small Business Trends