I went up to the track again this morning. It was extremely overcast, and I eased my legs into the 20 minute warmup. Then it was time for six 400s at my interval pace (sub 1:46).
I tricked myself by doing two sets of three 400s, and that really broke up the monotony of all those laps on the track! The truth is that when I'm pumping through an interval, I don't have the time or energy to get bored or feel much of anything. On the 5th and 6th 400, I just kept telling myself to run faster and NOT back off the pace or intensity.
By the way, my run streak is 7 days, and that means that tomorrow's a luscious rest day :)