在我看來，瑪麗一直在解除商店的業務，這是
那個故事弧似乎被拋棄了，但是在該系列的早期就建立了角色關係起到了很大作用。當Skyler面對Marie的偷竊行為時，我們看到Skyler堅決反對觸犯法律，並鼓勵她的妹妹通過返還被盜的禮物來做正確的事。我們還看到，當瑪麗否認有任何不當行為時，斯凱勒可以窺見謊言。出於以下幾個原因，這很有趣：
Walt顯然比Marie更好，因為Marie可以將自己的罪行對Skyler隱藏的時間更長。
在本系列的結尾，當漢克和瑪麗找到沃爾特和（最終）斯凱勒所犯下的罪行時，姐妹之間的關係被扭轉了。
對我而言，《絕命毒師》的整個前提是沒有人是完全好人或壞人。作家們知道最好的角色是有缺陷的角色，這使每個演員都具有積極和消極的屬性。對整個演員表的分析顯示了他們的二分法性質：
瑪麗需要有另一面。她看起來像是史蒂芬·福特的妻子，表面上一切都很好。她的入店行竊增加了她的完美本性。
入店行竊的弧度並沒有被放棄（它提到她看到漢克對此有所縮水，這可以解釋它已經有一段時間了），但是在第4季的《 Open House》中，瑪麗再次開始了入店行竊（很可能是由於漢克躺在床上並收集“礦物質”而遭受口頭虐待，因此在呼喊中尋求幫助。她因試圖從一間露天屋偷竊而被捕後，被漢克的警察好友蒂姆（Tim）保釋。蒂姆然後要求幫忙作為回報，讓漢克審視蒂姆正在從事的案件，這是蓋爾·波蒂徹（Gale Boetticher）的兇殺案。當然，這會產生重大後果。因此，如果瑪麗不是入店行竊者，漢克將永遠不會發現古斯的秘密，漢克也不會在實驗室筆記中看到蓋爾（Gale）的沃爾特·惠特曼（Walt Whitman）的名言，並在第5季與沃爾特建立聯繫。
我認為整個入店行竊活動與漢克有很大關係。瑪麗開始的那一刻，她與漢克的關係一點也不好。瑪麗（Marie）盡了最大的努力來解決這個問題，但如果我沒記錯的話，漢克（Hank）在去華雷斯（Juarez）時遇到了麻煩，此後停頓了一段時間，但當漢克（Hank）被槍擊後恢復健康時。婚姻問題再次開始。漢克也不會說話瑪麗。當瑪麗無法忍受時，她開始強加於別人，並開房子。並最終再次偷了東西。
I don't think the shop lifting theme was abandoned in the series but they have put it to an end. Here's my interpretation.
Initially, Marie was shown to us that she shop lifts for fun and no profit. But when Skyler finds out about that, as mentioned in Bill the Lizard's answer, Skyler was completely against shop lifting and gives lecture and goes hard on Marie to stop doing it.
It's been a long time but I definitely remember Hank makes her to visit a shrink to deal with her problems like shop lifting. After that, there were no scenes regarding Marie's shop lifting for so many episodes, But when Hank is paralyzed from waist down, Marie starts stealing again few expensive antiques or other objects, posing as different persons but this time it's for profit or money because guilt consumed her because she's taking her sister's money for Hank's treatment.
While stealing, she gets caught and was taken to prison and we were shown that Marie cries and realizes her mistake. For me it makes perfect sense that No person like Marie would again do the same mistakes like stealing after going through a lot of humiliation and also putting a dignified officer like Frank in the spot for her release from prison.