McDonald’s complaint: someone may have taken bites on my sandwich.

I ordered only one crispy chicken sandwich deluxe on my mobile apps and pick up on the drive-thru. My mobile app ordered code LC83 at 1:50PM on Saturday, 5212022. On my way home I opened the sandwich box and I realized someone may have taken bites on my sandwich. I was horrified, shocked, and disappointed. I toke it back and calmly explain to the McDonalds manager someone may have taken bites on my sandwich. He said I’m sure none of his employees does that. I told him I didn’t do that. This is my first time at this restaurant. Than he accused me saying that he see me here all the times which is a lies. I didn’t get apology from the manager instead I was mistreated and falsely accused it by the McDonald manager. I’m NOT a teenager. I’m a grown man. I wouldn’t wasted my time and trouble for a $5 sandwich. I hope the corporate would investigate this matter seriously, check all the cameras and find out who toke the bites on my sandwich and possibility of other people as well so to prevent future incident andor lawsuits.