if tempers fray among a group of people, they all become angry.

Tempers frayed when, after waiting for hours, we were told there were no tickets left.

• keep at bay
• keep a tight rein on
• keep a tight rein on someone
• keep a tight rein on something
• keep at something
• keep a weather eye on
• keep a weather eye on someone
• be sacrificed on the altar of
• be sacrificed on the altar of something
• be said for
• be said for doing something
• be said for something
• be scared out of mind
• be scared out of your mind
• be scared shitless
• be scared to death
• be scattered to the four winds
• be second to none
• be set in concrete
• be set in stone
• be several cards short of a full deck
• be shaking in boots
• be shaking in shoes
• be shaking in your boots
• be shaking in your shoes