All depends on who you get. One would let something slide and another will not. We saw a couple being refused entry because they did not have two adjoining empty pages. Not worth tempting fate. My passport is almost full so we stapled the last two remaining pages so no one could stamp them. Lots of pages left to go just not adjoining. Ken who has been to the same places I have been had about five adjoining pages. I guess they just like to use a new page my stamps!