Dogs walking on zebra crossings that go straight and turn left

But it has obvious errors.

Can you see where the error is?

Last night, I saw a dog walking across the zebra crossing without rushing. He went straight first, then turned left and continued to cross the zebra crossing with his tail wagging.

Later, I googled it and found that many dogs would cross the zebra crossing, and there were videos; but there were no videos of two consecutive zebra crossings with a strong purpose.

Because I am a human being, I can’t understand how dogs do it. Maybe it’s a natural ability to imitate, or maybe it’s a strong desire to survive.