Highly unfortunate, therefore, in this as well as in other regards, was an escapade of Brevet Colonel Harney, a man as brave as a lion and also as untamable, who had been occupying San Antonio for some time with three companies of the Second Dragoons. Obtaining permission to ask for Texan troops to defend the frontier against the Indians,[13.13] he called for eight companies, and shortly before Wool's arrival, on the pretext of a threatened Mexican invasion of which he entertained little or no fear, he moved off with his entire command, although he knew of the intended concentration at San Antonio, and advanced to the Rio Grande.[13.14] Imprudently crossing the river, he was cut off by one of its quick rises. Only the refusal of his officers to follow him prevented a ridiculous dash against Monterey. Finally, near the end of August, he obeyed the order to return, but left three companies behind; and a part of this detachment, engaged in procuring a large supply of grain and flour in Mexico, lost the supplies and three of their number, killed or wounded. The rest of the three companies escaped under fire in a disgraceful manner, burning public stores to prevent the Mexicans from taking them; and of course news that Americans had been repulsed flew like fire through the border.[13.26] [WOOL'S MARCH] Such presumption on the part of a regular officer, such imprudence, and above all such disregard of his government's known intentions were intolerable, and Wool felt them with peculiar intensity. He was a high-strung person. Being devoutly pious he loathed swearing, for example; but on special occasions his feelings got the better of his tongue, and when this occurred he would instantly raise his eyes to heaven and implore forgiveness. While not a great man, and apparently incapable of inspiring soldiers or gaining their sympathetic support, he understood his profession and lived up to it. When campaigning he seemed to sleep--if he slept at all--with both eyes open, and the outposts were liable to receive a visit at any hour of the night. Never sparing himself, he was equally stern with others; and towards officers, presumably more intelligent and responsible than privates, he seemed especially exacting. So now he treated Harney with such rigor that some of the volunteer officers, little disposed to favor strict discipline, sympathized with the culprit, and Wool came to be regarded by not a few as a narrow martinet, jealous and harsh in temper and weak in judgment. Possibly some ground for these opinions could be found, but substantially they were unjust.[13.15]