Overstay - reentry staying longer

[minicanada]

I have overstay on my record of 9 months back in 2011 ( I stayed for 15 months). I have been allowed to re-enter many times to stay overnight with my family but they always give me a hassle and send me to secondary. Im too worried if I ask for a longer duration I will be denied entry so I usually tell them Im coming in for the day, and then I leave when I said I would. (Good boy!)

If I told the officer I only plan to come into Canada for 24 hours but I stay longer, can I get into trouble? I dont get stamps stating dates nor visitor records, they just question me and then let me into Canada. Doesnt that mean Im technically allowed to stay up to 6 months again?

 

[minicanada]

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[zardoz]

Yes, unless they specify otherwise by use of a Visitor Record, you have the normal rules applied.
However, you are obviously on their radar, so you need to be careful that they don't get suspicious by coming too often or in some other way making them think that you are not a genuine visitor.
just as well that you are visa-exempt ;D