I'm glad the damage was minor. Thanks for making it into a safety lesson.
For those who don't have them, get them. For those that do, inspect them.
Inspect the hose for cracks, inspect the nozzle for insect nests, inspect the gauge for charge. They should be checked monthly but I admit I don't know when I last checked mine. I just checked the house one and intend to check the shop and vehicle ones this evening. Y'all do the same.