What opinions do you have that you consider (shallow && pedantic)?
On accident
I kind of can't take people seriously when they say On accident, I don't know or care if its more or less grammatical, it sounds like a child sputtering in my mind. It should be By accident or accidentally
Those who always want to correct usage of the word 'ironic', much like those who use 'whom' as the subject of a sentence, are trying to signal intelligence but revealing stupidity, and can be dismissed pretty much entirely as people to take seriously.