you had a pet snake,it was calm and collected of course it still has its wild instincts but it never bit you untill this day,when you were feedingyou pet snake it bit you..it most likely missed the food and bit you instead from the heat senses..no need to worry you snake is a cornsnake no venom comes from a cornsnake! it was just a tiny bite anyway..you dicided it was best to feed the snake with a glove now..for safety reasons