Paul was walking down Main street (a busy street in Baltimore, Maryland), and texting his girlfriend at the same time. He really was not paying attention, but saw the green light and the "walk" sign, so he decided to cross the street. Meanwhile, Doug was also not paying attention as he was driving his car down the street, and he ran the red light, hit Paul, and Paul ended up with 2 broken legs.

Paul sues Doug for negligence.

What are some of the defenses Doug might have in defending himself even though he admits to running the red light?