Field Crickets make them homes in the ground, tall grass, or built-up piles of natural lawn debris. They jump away from perceived danger, but sometimes that means right into your legs if you're walking through their habitat. They may startle and tickle, but they are completely harmless.
Field Crickets at a diet of animal remains and plant matter. They provide beneficial services to the ecosystem by eating the eggs and pupae of insect that are considered pests. On the other hand, in large numbers, they can be somewhat of a nuisance in gardens.
Field Crickets are often the species that is purchased at stores and used to feed 'pet' spiders and other insectivores. Anglers may also use them as bait when fishing.