In Wincanton v Stone, Mr Stone was employed as a driver for Wincanton. In 2009, Mr Stone received a first written warning for being insubordinate. In 2010, Mr Stone breached Wincanton’s health and safety rules when he pulled out of a loading bay when the light was red. This was not an act of insubordination but carelessness. Wincanton dismissed Mr Stone on the basis that the earlier warning “tipped the balance” in favour of dismissal, even though the two warnings were for very different types of conduct.