Ps2 boots to the Brower/Sys Config menu. help please

[Hades]

Ok so here's my plans.. point out any flaws.

1. Buy a PS2 at Zellers or Walmart (i'm in Canada with no Walmart in my city YET)
2. Bring it home and open it NORMALLY?
3. take PS2 out and take the WARNING sticker off and stick it on the back of my BUSTED ps2.. (or do i have to swap PARTs from the ps2s ??)
4. stick ps2 back in the box and close it up.
5. go back to the store and say it's a dud and wont boot up the games i bought..
6. get a new ps2 fom them.
7. take it home and leave it packaged
8. take it back to the store a couple days later saying i chagned my mind??

Is it ok to say i changed my mind if I have not opened the package yet ??

Thanks,
-Hades