That is incorrect line of thought - the sooner you come out of it, the better it is for YOU.
What you are implying is it is okay to HIDE information or not provide honest information upfront. Do you think that is correct? :-X I do NOT recommend that!!!
Here is what CIC says: http://www.cic.gc.ca/english/information/applications/guides/EG7TOC.asp
Police certificates
All applicants must submit police certificates/clearances as part of the application process.
You and all of your family members who are 18 years of age and older and who are not already permanent residents or Canadian citizens will have to provide:
•a valid police certificate, or
•police clearance, or
•record of no information.
These documents are to be provided for each country other than Canada, in which you have lived for six consecutive months or longer since reaching the age of 18.