Cheers!

When a guest refused to toast before the feast the host got really suspicious. The toast was simply matter of death or life in medieval era.

Toast in medieval era was a matter of death and life

These goblets could save host´s life

Crash of two goblets was used for safety issues when little bit of drink overflights from one to another. This act was to prevent poisoning. When guest tried to avoid this custom host could be sure that his companion does not have a good intent. Drink was usually offered to dog and if the animal bore signs of poisoning guest ended up in dungeon.

Cheers to that!