In Deventer you pick up a new sleeping medicine from the pharmacy. No yellow sticker visible, but the package insert lists drowsiness as a side effect. You use the medicine once, in the evening. The next morning at eight you drive to work. What applies?
The insert lists drowsiness as a side effect; you know or ought to know your driving ability may be impaired, sticker or not
Because you only used the medicine once, it is certainly out of your system by the next morning
Without a sticker on the packaging you may drive without restriction
Explanation
Wrong — trap: sticker-as-free-pass. The standard is 'knows or ought to know' (the law), not the presence of a sticker.