![In season 2 episode 17, there is a thomas the tank engine at the back of penny's apartment. does anyone know why? : r/bigbangtheory In season 2 episode 17, there is a thomas the tank engine at the back of penny's apartment. does anyone know why? : r/bigbangtheory](https://i.redd.it/hsok6i78kxs81.jpg)
In season 2 episode 17, there is a thomas the tank engine at the back of penny's apartment. does anyone know why? : r/bigbangtheory
The Big Bang Theory on Twitter: "Leonard Hofstadter: a prince among men, a king among nerds. 👑 #BigBangTheory https://t.co/FRD2rFlnYp" / Twitter
![The Big Bang Theory Season 10 Episode 17 Recap: "The Comic-Con Conundrum" Should Be Watched By Every Married Couple | Glamour The Big Bang Theory Season 10 Episode 17 Recap: "The Comic-Con Conundrum" Should Be Watched By Every Married Couple | Glamour](https://media.glamour.com/photos/58ae6cceff6adc2c9f0e520a/16:9/w_2751,h_1547,c_limit/the-big-bang-theory-jim-parsons-sheldon-cooper-mayim-bialik-amy-farrah-fowler-johnny-galecki-leonard-hoftstadter-kaley-cuoco-penny-2017-horizontal.jpg)