31.   Already, some sport-utility vehicles come with a placard on their sun visors warning about their high profile and tendency toward rolling over.

32.   Almost as immediately, the principal visited him at home to warn him about the troubling political implications of those foreign sneakers.

33.   Americans have already been warned about that little millennial computer problem.

34.   American intelligence agencies, for their part, have been warning about Chinese efforts to deploy new and better nuclear missiles, perhaps with stolen American technology.

35.   And he warned about allowing a buildup of debt within the financial system.

36.   And I warned him about getting in trouble and getting caught.

37.   And chinchilla owners are warned about raisins and dental decay.

38.   And experts warn about reading too much into polls at this early stage, when much of the public is spending more time pondering summer vacations than presidential options.

39.   And, they warn about the dangers of substituting these materials with substances that have been studied far less closely.

40.   And Thompson warns about jumping to conclusions about co-workers who rub you wrong.