I am so sorry to hear the 'Dog Class' did not go to well ....
...... but I don't blame the little guy ... he was scared .... and don't be embarrassed about it ... I can't imagen what it must felt liked to have dirty looks from the entire class .... some people can be so ignorant ....
I can't give you any advice on this .... I hope one of the YT Members can .... just hug the little guy and show him that you support him .....