拆快递 (opening packages) is almost a national hobby in China thanks to the massive e-commerce culture. 拆 is also used figuratively: 拆台 (chāitái) = to undermine someone; 拆穿 (chāichuān) = to expose/debunk.
culture
The character 拆 painted in a circle on buildings (usually in red) is a famous sight — it means the building is marked for demolition. 拆迁 (chāiqiān) = demolition and relocation.
