I really can't recommend all single men with dogs. I am reminded of one particularly disastrous online date I had with a man who had dogs...
First date, he suggested we meet in the park to walk our dogs and then go for a coffee if we got on. Seemed reasonable. Except his dogs were a newfoundland called "Baby" and a Jack Russell called "Princess" that wore a pink dog coat with "hot stuff" written on the back of it. He was so boring, he even bored himself telling me about himself - I kid you not, the conversation went "I'm a BT engineer, I work on cabling blah, blah blah"... He actually said "blah, blah, blah".
I was a bit
when he started telling me his dogs were his children and any woman dating him would have to respect his dogs came everywhere and that they sat at the table and had dinner when he did, along with sharing a bath with them. I told him I had 2 cats - he then informed me that if I wanted to date him I'd have to "get rid of the cats" because "Princess" (The JRT) didn't like them and neither did he. (What NOT to say to a cat lover on a first date!!)
Suffice to say, at the end of the walk, I said "Thanks very much, nice to meet you, but lets not do it again" - or words to that effect.
Cue the best part of 50 texts within the next 24 hours pestering me for another date, then harassing me and demanding to know I refused to reply to him. It culminated in 3 phone calls (went straight to voice mail, I wasn't going to engage!) with him leaving increasingly hostile and sobbing, hysterical messages demanding to know why I refused to talk to him, why nobody ever had a second date with him and why life was so unfair.
I wonder! I still refer to him as "Sobbing dog-boy" and dine out on the story. 
With DH, my collie still doesn't listen to him, she's still useless with livestock, but he's kind, considerate and most importantly in the first stages of our relationship, didn't hassle me - he was respectful of the fact I had a life. My "relationship radar" was so finely honed to "twat radar" and avoiding them, rather than "potential relationship", I didn't even realise DH liked me that way for 5 months, so we became good friends first. :)
Beware of men with dogs.
they are not all nutters, but a certain BT engineer with a newfoundland and a JRT in South Wales is!! 