1)
Why does it say "Pen Te'elaf Orchosav"?
1.
Rashi: Lest you learn [from his ways].
2.
R. Yonah: If you have patience and join with a Ka'asan (angry person), he will anger you many times. No one angers a person like a Ka'asan. Also, it will seem to you that anger is permitted, since he gets angry constantly. It will cause you to get angry at others. Also, anger will not be as despised to you as initially, after you are used to one who gets angry constantly.
3.
Malbim: After getting used to his ways, also you will do so.
2)
How do you take a snare for yourself?
1.
R. Yonah: You will acquire a Midah that will be a snare for you - "Ir Perutzah Ein Chomah Ish Asher Ein Matzar l'Rucho" (25:28).
