If you're not able to design it yourself, then you don't pass the test of being responsible enough in its use.

We are not responsible for the state's lack of knowledge in this area.

Such language makes things simple on the home front, but may be less than responsible in the real world.

He might have been responsible for them being there in the first place.

"My friend has been responsible for every tax increase in the 1980's."

Which meant that I would like to be responsible for his in return.

As you can see, I have been responsible for a significant number of jobs here in the past few years.

I didn't want them to be responsible for me in a battle.

Whatever had been done, he was responsible for his part in it.

People are not responsible for their actions in the least.