Give way always

One morning I was going to my work on a pickup truck with other friends, on a two-way street and one lane to each direction. There was some traffic. Suddenly came a truck from behind us invading the opposite way. The truck tried to join our lane in front of us, so my friends said to driver "don't give chance".

The pickup truck driver gave chance or the truck only joined, but this made me think there are moments than these attitudes cause anger, courage and they reduce us to the level of others and we behave the same or worse. What's the price or cost of relax, stop and let him into the lane? If I don't allow it I could cause a collision when I could have it avoided.

The best form to avoid a problem between one intruder and me is I give the way. Why complicate my life?