last night marked my husband's first official participation in Halloween activities.  He was raised in Orthodox communities, so it just wasn't done.  We're new to our neighborhood and passing out candy gave us a chance to meet some more neighbors.  It also put us in the running for a potential lawsuit.  In a fit of passion for candy (greed? gluttony?), a boy of about 9 or 10 years came running toward our house and tripped on our uneven sidewalk.  He fell onto the driveway and just stayed there.  After we walked to where he was lying and gave him and his brother a handful of candy, his dad picked him and carried him to the next house.  Later in the night we watched a kid trip over his own feet in the grass.  His dad's response was "get off the ground."  
As far as discernible costumes, we had mostly angels, ninjas, princesses, and spiderman.       

I will never understand why it's a bad thing for a supposed first world country to assist its citizens with something so basic.