stumble at a straw

stumble at a straw

To be thwarted or unsettled by a minor issue or problem. Overall, your grades are great, so don't stumble at a straw and abandon your studies because of this one B. You can't rely on Kelsey, she always stumbles at a straw and gets rattled by the slightest problem.
See also: straw, stumble
Farlex Dictionary of Idioms.
See also:
  • stumble
  • extracurricular activity
  • take (something) in (one's) stride
  • take in stride
  • take something in your stride
  • base over apex
  • fall among (a group)
  • have a beef with (someone or something)
  • tumble into
  • tumble into bed