Strong Dachshund

Dachshunds may not be the best pets for small children. Like any dog, dachshunds need a proper introduction at a young age. Well trained Dachshunds and well behaved children usually get along fine. Otherwise, they may be aggressive and bite an unfamiliar child, especially one that moves quickly around them or teases them. However, many Dachshunds are very tolerant and loyal to children within their family, but these children should be mindful of the vulnerability of the breed's back and not carry them around roughly.
A 2008 University of Pennsylvania study of 6,000 dog owners who were interviewed indicated that dogs of smaller breeds were more likely to be "genetically predisposed towards aggressive behaviour". Dachshunds were rated the most aggressive, with 20% having bitten strangers, as well as high rates of attacks on other dogs and their owners. The study noted that attacks by small dogs were unlikely to cause serious injuries and because of this were probably under-reported.