31. As it turned out, they collected enough material to foul up the computer system in their boss'office. 32. Bears President Michael McCaskey called Friday's premature announcement of the hiring an " internal foul up ." 33. The simple design makes the machine easy to start, easy to operate and hard to foul up . 34. Even if we wanted to do that, we would foul up macroeconomic stability, " he told reporters. 35. But chips of wood and insulation in the recycled shingles can foul up efforts to create consistent pavement. 36. An NBA lockout can really foul up the sales of $ 850 alligator skins, especially in size 17. 37. Always one foul up , never together. 38. Plead ignorance in hopes that the faulty IRS computer system will foul up when you're counting on it? 39. Cyclists will have to stay up late if bad weather fouls up track events at the Cheras Velodrome. 40. When one player fouls up , the entire team suffers and you have a player take exception to it.