It's not good to be racist towards anyone.
Martin works in a grocery store and notices a black customer opening different bottles of ketchup and pouring them on the floor.
Martin wants to tell the black customer to stop opening ketchup bottles.
Martin tells the customer that opening food products is not permitted in the store unless the customer pays for them.
Martin tells the customer that only uncivilized blacks would open and pour out ketchup bottles in a grocery store.
The black customer then leaves the store because they don't want to actually buy the ketchup.
The black customer complains to the store manager about what Martin said, and he is fired.