If you’re trick-or-treating Thursday night, expect to come up empty-handed at about one in 10 houses.That’s according to a new poll by the UMBC Institute of Politics, in which 11 percent of Marylanders said they will pretend they’re not home on Halloween.Fortunately, you’ll have some luck on the rest of the block, where 77 percent said they plan to give out candy or treats, and 5% said they will be handing out something else.“Like most Marylanders, I’m looking forward to handing out candy to trick-or-treaters this Halloween,” said Mileah Kromer, director of the UMBC Institute of Politics. “Seeing delightful children of all ages in their costumes is certainly a welcome break from the real spooky season, the final weeks of campaigning for the General Election.”The poll also asked respondents “At what age, if ever, does a child become too old to go trick-or-treating?”You are never “too old” to go trick-or-treating, according to 29 percent of residents. But for others, there is a cut-off.Five percent said age 10 to 11 is “too old” for trick-or-treating; 21 percent set the limit at age 12 to 13; 17 percent said age 14 to 15; and 18 percent said age 16 to 18. Another 8 percent said they “don’t know” how old is “too old.”There is a margin of error of plus or minus 3.1 percentage points for the sample of 1,003 Maryland adults, and plus or minus 3.2 percentage points for the sample of 917 Maryland registered voters.