When you place in front of you something such as the back of a saddle, then there is no harm if someone passes in front of you (i.e. the other side of it). (Using translation from Abū Dāʾūd 685)
"إِذَا جَعلتَ بينَ يَدَيكَ مِثْلَ مُؤَخَّرَةِ الرحْلِ فلا يَضُرُّك مَنْ بين يَديكَ".