This statement excited general murmurs of disapprobation. Limitations to freedom of speech may occur through legal sanction or social disapprobation, or both. Pope Innocent IV expressed, in 1253, general disapprobation of these nominations. And Pope Innocent IV expressed, in 1253, general disapprobation of these nominations. Whistling is often used by spectators at sporting events to express either enthusiasm or disapprobation. These limitations may be legally imposed or may be effected through social disapprobation, or both. The result was disapprobation in both Australia and Singapore. This was deemed inappropriate and rejected, after a "chorus of disapprobation". However, conditions remained an object of social disapprobation.