rough·shod 
(rŭfshŏd′)
(rŭfshŏd′)adj.
Idiom: 1. Shod with horseshoes having projecting nails or points to prevent slipping.
2. Marked by brutal force: Stalin's roughshod treatment of the kulaks.
ride roughshod over
To treat with brutal force: a manager who rode roughshod over all opposition.