The first thing my dad does when he comes home is go into a huge rant about how I drink too much soda and how I chug several cans every day and it's terrible for my bones why would I buy this stuff I'm poisoning myself and my mind itself is wrong to encourage such a habit.
I had one two days ago, none yesterday and one today. He then spotted three cans in the trash that has not been emptied in months.
Yeah yeah I know he's just ranting to blow off steam from other unrelated crap, but for fucks sake man. This probably wouldn't bother me so much if he didn't outright ignore every fact I said above. The only time he acknowledged me talking was at the very end of the lecture when he said "Don't make excuses!" Argh, I'll place this next to your helpful advice like "Don't assume!" when I had to make an estimation and it was wrong and "Don't swallow!" when I finished my food a minute before everyone else at dinner.
I hold the belief that even if you don't really hold respect for ones parents in the way you would for everyone else you should still hold some respect for them as your parents. This is the ideal. Some parents do such a lousy job of being parents that they don't deserve that respect, but this is limited to parents who abandon/endanger/torment their children. My father provides for the family and cares about our well-being aside from personal gain, so he doesn't match any criteria to deserve not having my respect.
This ideal could be difficult to maintain.