he was going through his paperwork as normal when he realized it was messed up completely. He went to yell at production when you realized this. You took the blame and had to fix the paperwork that was messed up and work overtime as punishment. A few weeks go by and he found out that it wasn't actually your fault the paperwork got messed up by a different worker and he called you into his office

Walden: hello…do you know why I called you in here?