Coffee grounds are definitely sneaky culprits—I learned that the hard way after a weekend of DIY plumbing adventures. Now I just toss them straight into the garden beds; plants seem happy, pipes stay clear... win-win, right? Grease though, yeah, that's strictly trash-bound in my house.
Had a similar run-in with rice once—thought it was harmless, but nope. Swells up and clogs like nobody's business. Now I strain leftovers religiously... lesson learned the messy way. Grease, though, totally agree—straight to the bin every time.
Rice is sneaky like that... had a tenant once who dumped pasta down the drain regularly. Thought it was fine 'cause it's soft, right? Nope. Ended up pulling out a noodle monster the size of my fist. Not fun.
Had a similar call last month—homeowner swore they never put anything weird down the drain. Pulled out a tangled mess of rice and coffee grounds that had turned into a solid brick-like clog. Rice expands and sticks together, coffee grounds compact... it's like DIY concrete in your pipes. Pasta's just as bad, especially spaghetti strands—they wrap around everything. Best bet is scraping plates into the trash first, saves a lot of headaches later.