Every parent has those moments when they loss their temper, especially in the moment of frustration or confusion.

Bad parenting can be said to be mentally or 

physical abuse like neglect, emotional abuse which 

is very hinderance to one child, especially in the physical aspect that leaves serious traits associates with bad parenting.

Losing your temper every once in a while is the not the right way of telling your child that you are smarter and they are dumb or they are wrong you are right .

traits of bad parenting 

Over or under involved parenting tare neglectful and fail to respond to their child needs apart from basic needs like shelter,taking total control of their child decision and doing too much for them, hindering them from doing things they are suppose to learn and 

do

No discipline parenting children without discipline or good parenting often over cross boundaries

And behavior anyhow

Authoritarian parenting does not allow their child to explore their chil world as such they are hindered from knowing their world.

It effects include

Low self esteem

Depression and anxiety

Negative self perception

They become rebellion

Emotional and behavior problem .

It is my advice to parents to view they ways of parenting to know whether they are impacting negative behavior or positive behavior in their child, as such it will help the child in developing good moral behavior