so Enid - what did the 6 year old boy do?
I have been thinking about your puppy question all night and feel I have to recommend caution.
We got a labrador puppy a year ago and I have spent a lot of time regretting it. I expected to love him and have this wonderful relationship but I found all his (natural, normal and healthy) behaviour exhausting when pregnant and just plain annoying after I gave birth.
These are the things which have continually stressed me out:
toilet training. Only took about a month to stop him pooing in the house but he still goes on the grass which means I have to check it over before I let the children out to play.
vets bills. Not counting the routine vacs and sterilising there have been several little appointments which aren't expensive enough to be covered by insurance but still cost at least £25 a time. Mainly things like him hurting his leg, cutting his face on the lead harness thing etc.
humping. We didn't get him done till he was almost a year (as recommended) and during that time he would hump everything, but especially the children's backs. It was really distressing for the children because he is quite powerful and for me because I was pregnant and it was just horrible and distasteful. And it wasn't even a sex thing - he did it as a power thing. He stopped doing it to dh fairly quickly as he recognised him as the alpha male and then me and then dd. But he did it to ds for ages and to every new person who came to the house.
And I hate seeing his red willy hanging out. Yuck. And sometimes it gets stuck out and won't go back in...
chewing. For months he ate everything he could find. It meant we could never let the children leave their toys on the floor and it felt like he was ruling everything in our life. It's the children's home, ffs! (can you tell I'm getting riled?)
walking. he pulls like mad and walking him makes me want to cry. We spent a year following a dog trainer's advice to walk him with a gentle leader harness and encourage him with food. Complete waste of time. Dh is now trying a technique from BBC3's Dog Borstal which (touch wood) seems to be working better. I gave up trying to walk him when pg and am not doing it now either as I had to grab hold of a lamppost the other day to prevent him from pulling me over.
The only reason we have persevered is that dh and the children (well, ds more than dd1) love him and I feel we made a commitment to him in buying him and I have to honour that. Also, over time I can see an improvement and round the house he is now generally very good and the chewing incidents are few and far between. I know he will get better with time and also I know I have to put more time into him and play with him more but I have 2 older children and a six week old baby and so that isn't going to happen for a while.
I would not wish to go through that first year again. Maybe in time I will learn to love him to bits and have this wonderful relationship.
But be warned - that first year with a puppy and young children is tough.