My self and all my kids love this show. Perry and Doofenshmirtz are the best part. I love when they cut to him and they do the sing song voice of where he's at. One funny thing happened while we were watching it, it was the episode where they're stranded on the island and the boys build a tree house, and Candice walks in and sees Ferb giving the monkey a shower, and he goes, "It had to be done." I laughed so hard at that and my wife looked at me and said, aren't you a little old to be laughing that hard at a cartoon, and I looked at her and said, "Yes, yes I am." My kids cracked up at that and my wife just glared at me. She doesn't really like cartoons that much.
The funny thing about the flamethrower is at some place and some point in time, someone looked at something and thought, "Hey, I'd really like to set that on fire, but it's too far away."