Just a follow up to the discussion about Rav Ada’s actions described in Brachos daf chof omud alef. I looked at a few more sources, and concluded that there are three schools of thought and interpretation. One is as mdd wrote, that the woman who turned out to be not Jewish, was wearing red, which is interpreted by some as being untznius, and so Rav Ada tore it from her. The second, is the interpretation of Rashi as explained by the Maharshal, is that the woman was wearing a very expensive garment, and Rav Ada thought it was gaiva and not pritzus to be wearing it. The third one I found is brought by Rav Adin Shteinzaltz, who found sources indicating that the karbolta that the woman was wearing was a garment known to be made of shatnez, and that is why he tore it from her.
The one element of the “pritzus” argument that no one mentioned here and would be impossible to contemplate Rav Ada doing, is that a man ripping a garment off of a woman would create an even bigger problem of tznius and the woman would be more, not less exposed.
In any case this demonstrates conclusively that far from it being “obvious” that the gemoro was talking about pritzus, an Acharon explains a Rishon as saying it has absolutely nothing to do with pritzus, and one of the greatest gemoro scholars of the last century says it also has nothing to do with pritzus.