At a junction in Loppersum you enter on a green light. At the same moment another driver on the crossing road runs a red light. Must you let that other driver go first because they are already on the junction?
Yes — whoever is already on the junction always gets priority, regardless of the light
No — entering on green means you do not have to give way to someone running a red light
Explanation
Wrong — trap: already-on-the-junction fallacy. The light regulates priority; the other driver's mistake changes nothing about that.