I used to have funny things happening in my house, if you read
up my threads at Shan_cai place.
I also do not have any religious altar in my house. But most of
the time I find a logical answer to the strange occurences, save
for a few.
Like the TV off by itself, I found out the timer was
accidentally activated.
The dog maybe trying to tell you its pen have small nasty
insects which is scaring or bitting it.
For those unexplained, so far it is nothing permanent. The
signs are short lived and did not hurt us in any way. It will go
away soon I believe.