Fence barrier barricade obstacle hedge block chain bumper hurdle obstruction rampart interference impediment curb Permit roadblock pale paling bar inhibition deterrent hindrance dam stumbling block handicap halt clog fender trammel cushion encumbrance embarrassment buffer restraint crimp snag constraint bulwark pad shackle(s) drag manacle hobble fetter hit a/the wall a fly https://gunneryeinq.wikienlightenment.com/6910351/wall_an_overview