pirl said: Could that "roach" have been an earwig? Earwigs can do great damage.
I used to hate earwigs, but then I found out that they have their good points:
Are earwigs bad for your garden?
Although earwigs can devastate seedling vegetables or annual flowers and often seriously damage maturing soft fruit or corn silks, they also have a beneficial role in the landscape and have been shown to be important predators of aphids and other insects.