People who say "on accident" instead of "by accident" it sounds so fucking wrong to my ears. I understand how it became a thing, you say "on purpose" so why not "on accident"?!
Well you're saying the equivalent of "mistakenly". Which one sounds less retarded:
1) I did it on mistake.
2) I did it by mistake.
Well you're saying the equivalent of "mistakenly". Which one sounds less retarded:
1) I did it on mistake.
2) I did it by mistake.