Presume you mean ordering kiosks. I use the McDonalds one on the M6 Toll quite a lot. Sounds like I would have got shit on my hands and then smeared it all over my Sausage and Egg McMuffin.
That’s how you eat in general
Adds to the flavour or I should say it provides some flavour
You shouldn't worry too much as the government dish out shit to us most of the time.