Many of the same decisions and principles that apply in other criminal investigations and arrests arise also in civil disobedience cases. For example, the suspect may need to decide whether or not to grant a consent search of his property, and whether or not to talk to police officers. It is generally agreed within the legal community, and is often believed within the activist community, that a suspect's talking to criminal investigators can serve no useful purpose, and may be harmful. However, some civil disobedients have nonetheless found it hard to resist responding to investigators' questions, sometimes due to a lack of understanding of the legal ramifications, or due to a fear of seeming rude. Also, some civil disobedients seek to use the arrest as an opportunity to make an impression on the officers. Thoreau wrote, "My civil neighbor, the tax-gatherer, is the very man I have to deal with--for it is, after all, with men and not with parchment that I quarrel--and he has voluntarily chosen to be an agent of the government. How shall he ever know well that he is and does as an officer of the government, or as a man, until he is obliged to consider whether he will treat me, his neighbor, for whom he has respect, as a neighbor and well-disposed man, or as a maniac and disturber of the peace, and see if he can get over this obstruction to his neighborliness without a ruder and more impetuous thought or speech corresponding with his action."