I need lemmy folks to be my moral compass quickly, please

im facing a moral conundrum. I got a guinness and a whiskey and a breakfast sandwich at a food counter in the airport. dude was busy and in the weeds and forgot he didnt charge me. so I just took it. My options are the following:

1. Confess and pay.
2. Just leave.
3. Tip the counterperson €10 and say thank you.
4. Tip the counterperson and say you forgot to charge me 🤫

what should I do folks quick my plane will be boarding shortly