Agree with above.
Just because you nan didnt train her doesn't mean you can't train her.
Never introduce dogs on their own territory, needs to be in a neutral place.
Chicken and rice will be fine for long term.
How about putting some scrambled egg with it now and again and also give her a small bowl of warm porridge in the morning.
and just monitor how she goes!
I just went to my local butchers and asked if he could do me a load of offcuts and he does me a big bag for £5 and then i buy more "real" bits of meat from him with the bones in and such.
I just chuck it all in the freezer and take out 3 days worth at a time!
One of mine gets a warm shower everyday because he goes in the stinkpot mud swamps.
Another of mine is about 3 times a week because he has to have his skin treated with special shampoo.
Put his leash on, take him out side to a pee spot if he doesnt pee then take him right back inside.
Just dont let him take himself out to wee cause it sounds like to me his is taking the micky a bit!
My jack russell is allergic to grass seeds and gets his belly like this when walking in grass. The vet gave us some medicated shampoo which we have to bath him in once a week during the warmer months.
I do it with my pack of mutts and they lOOOOOVE it.
Have a halti on the dog o you have more control over stopping.
When i want to stop i just turn to the side so i get some pull back and then can stop the dogs.
Although mine are now so use to it they know when to stop.
Maybe find a carpark or...
Yes i have used one of the bike attachments and i can highly recommend them awesome fun. They have a stretchy lead part like elastic so it has give if the dog decides to sniff something!