When we were in Nitra, a nice city in Slovakia, back in 2017 we were stopped by local police who wanted me to take an alcoholtest.
They asked me kindly in Hungarian (yes, a big part of Slovakia still speaks Hungarian and police apparently are inclined to use that language when speaking to tourists too) if I had been drinking.
"One beer" ("egy sör"), I answered, which was true (half a liter of damn Stella).
Then I took the test. It proved that I had indeed been drinking one beer and certainly not more.
"Do you know we have a zero tolerance for drinking and driving?", the officer asked. "Igen, tudom" ("Yes, I know"), I answered. "Okay", he answered, "remember that for next time. You can go now, we like tourists."
And then, smiling: "Take this mouthpiece with you. It's a souvenir. It's free." :-)