I went to
www.wagmytail.com in Tujunga. It's a short 5 week course but it's from 9-5 Tues~Sat. Sometimes they let you go early. I don't know if you can do this while working full time, unless you use your vacation days!
One of the reasons why this course is only 5 weeks is to cater to those that cannot spend 6-8 months in a classroom to learn grooming. So it's very ideal for those who want a career change & start working right away...we've got bills to pay!
