Oh heck yeah, it kicked my butt like nothing ever before or since. It HIT me like a physical HIT, just about knocked me down. I opened all the windows and doors and turned fans on while running around with towel over my face and we left. Came back many hours later and it still was there and BAD. It was the middle of winter and very cold but that night we slept with the bedroom door closed and the window open still airing out the rest of the place. It was VICIOUS I mean VICIOUS stuff!
By the way after doing this I read the directions.....the toilet bowl cleaner had big bold warnings "DO NOT MIX WITH BLEACH! And the bleach had big bold print warnings "DO NOT MIX WITH AMONNIA" and "DO NOT MIX WITH ANY OTHER HOUSEHOLD CLEANER ESPECIALLY TOILET BOWL CLEANER" Which of course contains amonnia.