WINONA, Minn. – An unhappy landlord and tenant were in an argument when the tenant challenged the landlord to mace him with pepper spray. The landlord did. Retaliation followed: The tenant smashed a stereo speaker into the windshield of the landlord’s car. By the time police arrived, they said the evidence of the violence was obvious in the tenant’s mace-pocked red face and in the landlord’s shattered windshield. Charges would be pending, police said. This was about 6 p.m. in the 450 block of East Sanborn. Both parties confirmed that the confrontation started when the landlord dropped by to confirm whether tenant had indeed moved out.