Help ! I have had my dog for four years (he was 9 months when I got him) – he being a rescue dog and cross?

Tee asked: Lakeland Terrier. Until recently I have always walked him off the lead but no longer as he has recently bitten someone now I will not walk him off the lead or without a baskerville muzzel. I have been training him , with the use of treats, of course, to come, sit, [...]

my dog is about 10 years old i got him from a rescue place 6 years ago?

hm asked: he has been really good behaved since we got him but now he is becoming more and more disobedient.
has anyone else had this problem. what can i do to help him become obedient again?

just a quick one for anyone who has re-homed a dog?

sarah asked: hi peeps, just a quick one to ask how much of a donation are dog shelters (RSPCA etc) asking for now-a-days?
i last went, when i was collecting my dog, 8 years ago and so not sure if it has gone up since then.
Surely it must of!
i had to have him put to sleep [...]