My personal dog will be 6 years old now and also he ought to of gotten abused by his good old master so they are very skiddish whenever you are to pet him he / she flinches plus gets terrified like im visiting hit your ex or anything:( and he or she is very tiny because they have a Minature Sheltie
1) Make use of treats, yummy ones.POST use Puperoni.My doggie goes crazy for all.
2) Bottle of spray bottle.When your dog does anything bad, bottle of spray him.
3) Put plenty of interest inside him.
4) Valor him.
take to some professional and figure out how to train.