The new girl said it so much that the woman got tired of hearing it. She tried tuning it out but it came out of her mouth everywhere. The new girl hit the wrong button or gave back too much change — "I’m sorry, I'm new here." She used the wrong broom to sweep or folded the credit card applications the wrong way (they’d gotten in trouble for making the fold where the interest information was) — "I’m sorry, I’m new here."