Late last week, gas and oil futures fell by 10%. This drop ought to be passed along to customers this week. Except, of course, that the war with Iraq will be starting this week. And what was with that unusual price action at the pumps late last week? Put it all together, and when it comes to predicting what will happen to retail gas prices this week, here’s a big “I just don’t know.” Just to be safe, I just filled up my tank for $1.72 a gallon. Prices dropped all week.