James Anderson admitted that even England were taken aback by their stunning bowling performance late in the third day of the second Ashes Test.
The tourists were bowled out for 227 in a woeful batting display on Monday, 215 runs adrift of Australia's 442-8 declared.
Steve Smith had the option to enforce the follow-on, but turned it down and England had reduced the hosts to 53-4 at stumps, albeit with Australia still enjoying a healthy advantage.
Anderson had Cameron Bancroft (4) and Usman Khawaja (20), and was aghast when Smith looked out on nought, only to be reprieved by DRS after England's leading wicket-taker pitched fractionally outside leg.
Chris Woakes did remove the Australia captain for six, however, as England ended a see-sawing day well on top.
"We weren't expecting as much swing as we got there," Anderson told BT Sport.
11 - England have lost the last 11 Tests in which they've conceded a first innings lead batting second. Salty. #Ashes-- OptaJim (@OptaJim) December 4, 2017
"Under the lights it did a lot more than we expected but even when it's doing the amount it did, you've still got to put it in the right areas.
"We learnt from the first innings, we didn't quite bowl full enough in the first innings. We made a point of trying to get it up there and find the edge, get the lbws, which we did.
"I think we deserved the four wickets today."
Despite a mostly chastening day, England left the field at stumps in high spirits, with Australia sending out Nathan Lyon as a nightwatchman and time-wasting at the end of play.
Anderson hopes the tourists can maintain that momentum into Tuesday to set up an unlikely comeback.
"There was a lot of disappointment after our batting performance, frustration I think was in there and we wanted to show we're not just here to roll over," Anderson added.
"We needed to show a bit of fight and get ourselves back into this game because we didn't do ourselves justice with the bat.
"If we can bowl them out cheaply, which we're going to have to do, we feel like we can chase anything down.
"The pitch has not got demons in it, there's no lavish sideways movement or anything like that.
"We've got a lot of hard work still to do with the ball and hopefully, if we can bowl them out cheaply, we can give these runs a good chase."